473 lines
18 KiB
JavaScript
473 lines
18 KiB
JavaScript
/* library for creating CuVoodoo Land Pattern (cvlp) JSON files and render them
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Copyright (C) 2015 King Kévin <kingkevin@cuvoodoo.info>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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// create a set of elements with an line element
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function cvlp_line(x1, y1, x2, y2, thickness) {
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var line = {}
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line.type = "line"
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line.x1 = x1
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line.y1 = y1
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line.x2 = x2
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line.y2 = y2
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line.thickness = thickness
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return [line]
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}
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// create a set of elements with an arc element
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// arc goes angle degrees clockwise from start
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function cvlp_arc(x, y, radius, start, angle, thickness) {
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var arc = {}
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arc.type = "arc"
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arc.x = x
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arc.y = y
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arc.radius = radius
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arc.start = start
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arc.angle = angle
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arc.thickness = thickness
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return [arc]
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}
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// create a set of elements with an pad element
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function cvlp_pad(number, x, y, width, height, round=true) {
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var pad = {}
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pad.type = "pad"
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pad.number = number
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pad.x = x
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pad.y = y
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pad.width = width
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pad.height = height
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pad.round = round
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return [pad]
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}
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// create a set of elements with an pin element
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function cvlp_pin(number, x, y, thickness, drill, round=true) {
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var pin = {}
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pin.type = "pin"
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pin.number = number
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pin.x = x
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pin.y = y
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pin.thickness = thickness
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pin.drill = drill
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pin.round = round
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return [pin]
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}
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// create a set of elements representing a chain of lines
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// provide a list of [x,y] coordinates
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function cvlp_polyline(points, thickness, closed=false) {
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var polyline = []
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for (var i=0; i<points.length-1; i++) {
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polyline = polyline.concat(cvlp_line(points[i][0], points[i][1], points[i+1][0], points[i+1][1], thickness))
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}
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if (closed) {
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if (points[0][0]!=points[points.length-1][0] && points[0][1]!=points[points.length-1][1]) {
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polyline = polyline.concat(cvlp_line(points[points.length-1][0], points[points.length-1][1], points[0][0], points[0][1], thickness))
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}
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}
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return polyline
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}
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// create a set of elements representing a rectangle
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// provide top corner, size, an radius of corner
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function cvlp_rectangle(x, y, width, height, thickness, radius=0) {
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var rectangle = []
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rectangle = rectangle.concat(cvlp_line(x+radius, y, x+width-radius, y, thickness))
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rectangle = rectangle.concat(cvlp_line(x+width, y+radius, x+width, y+height-radius, thickness))
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rectangle = rectangle.concat(cvlp_line(x+width-radius, y+height, x+radius, y+height, thickness))
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rectangle = rectangle.concat(cvlp_line(x, y+height-radius, x, y+radius, thickness))
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if (radius!=0) {
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rectangle = rectangle.concat(cvlp_arc(x+radius, y+radius, radius, 180, 90, thickness))
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rectangle = rectangle.concat(cvlp_arc(x+width-radius, y+radius, radius, 270, 90, thickness))
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rectangle = rectangle.concat(cvlp_arc(x+width-radius, y+width-radius, radius, 0, 90, thickness))
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rectangle = rectangle.concat(cvlp_arc(x+radius, y+width-radius, radius, 90, 90, thickness))
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}
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return rectangle
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}
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// convert value from one unit to another
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// units allowed: mm, in, mil
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// returns converted value, on null if unknown unit
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function convert_unit(value, from, to) {
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// don't convert if the unit is the same (avoid calculation imprecisions)
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if (from==to) {
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return value;
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}
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// convert to µm
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var mum = 0;
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switch (from) {
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case 'mm':
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mum = value*1000;
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break;
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case 'in':
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mum = value*1000*25.40;
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break;
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case 'mil':
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mum = value*25.40;
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break;
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default:
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return null;
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}
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switch (to) {
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case 'mm':
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mum = mum/1000;
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break;
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case 'in':
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mum = mum/1000/25.40;
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break;
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case 'mil':
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mum = mum/25.40;
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break;
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default:
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return null;
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}
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return mum;
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}
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// convert JSON to SVG
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function json2svg(json) {
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// create svg
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var svgNS = "http://www.w3.org/2000/svg"
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svg = document.createElementNS(svgNS,'svg')
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svg.setAttribute('xmlns',svgNS)
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svg.setAttribute('version',1.1)
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svg.setAttribute('xmlns:inkscape','http://www.inkscape.org/namespaces/inkscape')
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// set unit
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if (json.unit=="mil") { // mil units are not supported in SVG, convert to inch
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svg.setAttribute('height',(json.height/1000)+'in')
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svg.setAttribute('width',(json.width/1000)+'in')
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} else {
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svg.setAttribute('height',json.height+''+json.unit)
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svg.setAttribute('width',json.width+''+json.unit)
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}
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svg.setAttribute('viewBox','0 0 '+json.width+' '+json.height)
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// add info
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var svg_title = document.createElementNS(svgNS,'title');
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svg_title.textContent = json.name;
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svg.appendChild(svg_title);
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// add layers
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layers_desc = [ { name: 'copper', stroke: 'black', fill: 'black'},
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{ name: 'drill', stroke: 'none', fill: 'white'},
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{ name: 'silkscreen', stroke: 'gray', fill: 'none', 'stroke-linecap': 'round'}
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]
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layers = []
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for (layer_i in layers_desc) {
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var layer_desc = layers_desc[layer_i]
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var layer = document.createElementNS(svgNS,'g')
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layer.setAttribute('inkscape:groupmode','layer')
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layer.setAttribute('inkscape:label',layer_desc.name)
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for (key in layer_desc) {
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layer.setAttribute(key,layer_desc[key])
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}
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svg.appendChild(layer)
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layers[layer_desc.name] = layer
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}
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for (var element_i in json.elements) {
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var element = json.elements[element_i]
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switch (element.type) {
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case 'line':
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var line = document.createElementNS(svgNS,'line')
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line.setAttribute('x1',element.x1)
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line.setAttribute('y1',element.y1)
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line.setAttribute('x2',element.x2)
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line.setAttribute('y2',element.y2)
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line.style.setProperty('stroke-width',element.thickness)
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layers['silkscreen'].appendChild(line)
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break
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case 'arc':
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element.start = (element.start+360) % 360
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element.stop = (element.stop+360) % 360
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var arc = null
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if (element.start==element.stop) {
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arc = document.createElementNS(svgNS,'circle')
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arc.setAttribute('cx',element.x)
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arc.setAttribute('cy',element.y)
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arc.setAttribute('r',element.radius)
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} else {
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var x1 = element.x+element.radius*Math.cos(((-1*element.start)%360)/360.0*Math.PI*2)
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var y1 = element.y-element.radius*Math.sin(((-1*element.start)%360)/360.0*Math.PI*2)
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var x2 = element.x+element.radius*Math.cos(((-1*(element.start+element.angle))%360)/360.0*Math.PI*2)
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var y2 = element.y-element.radius*Math.sin(((-1*(element.start+element.angle))%360)/360.0*Math.PI*2)
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arc = document.createElementNS(svgNS,'path')
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arc.setAttribute('d','M '+x1+' '+y1+' A '+element.radius+' '+element.radius+' 0 '+((element.angle)%360>180 ? '1' : '0')+' 1 '+x2+' '+y2+' ')
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}
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arc.style.setProperty('stroke-width',element.thickness)
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layers['silkscreen'].appendChild(arc)
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break
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case 'pad':
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var copper = document.createElementNS(svgNS,'rect')
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copper.style.setProperty('stroke-width',0)
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copper.setAttribute('x',element.x-element.width/2)
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copper.setAttribute('y',element.y-element.height/2)
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copper.setAttribute('width',element.width)
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copper.setAttribute('height',element.height)
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if (element.round) {
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copper.setAttribute('rx',Math.min(element.width,element.height)/2)
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copper.setAttribute('ry',Math.min(element.width,element.height)/2)
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} else {
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copper.setAttribute('rx',0)
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copper.setAttribute('ry',0)
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}
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layers['copper'].appendChild(copper)
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break
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case 'pin':
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break
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var copper = document.createElementNS(svgNS,'rect')
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copper.style.setProperty('stroke-width',0)
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copper.setAttribute('x',element.x-element.thickness/2)
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copper.setAttribute('y',element.y-element.thickness/2)
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copper.setAttribute('height',element.thickness)
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copper.setAttribute('width',element.thickness)
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if (element.round) {
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copper.setAttribute('rx',element.thickness/2)
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copper.setAttribute('ry',element.thickness/2)
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} else {
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copper.setAttribute('rx',0)
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copper.setAttribute('ry',0)
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}
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layers['copper'].appendChild(copper)
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var drill = document.createElementNS(svgNS,'circle')
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drill.style.setProperty('stroke-width',0)
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drill.setAttribute('cx',element.x)
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drill.setAttribute('cy',element.y)
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drill.setAttribute('r',element.drill/2)
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layers['drill'].appendChild(drill)
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break
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default:
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console.log('unknown element type: '+element.type)
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}
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}
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return svg
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}
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// convert CuVoodoo Land Pattern JSON to gEDA pcb footprint
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function json2pcb(json) {
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// create file and add info
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var pcb = ''
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pcb += '# footprint generated from CuVoodoo Land Pattern\n'
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pcb += '# author: '+json.author+'\n'
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pcb += '# version: '+json.version+'\n'
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pcb += '# date: '+json.date+'\n'
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pcb += 'Element["" "'+json.name+'" "" "" 0 0 0 0 0 100 ""]\n'
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pcb += '(\n'
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// add element parts
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for (var element_i in json.elements) {
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var element = json.elements[element_i]
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switch (element.type) {
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case 'line':
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pcb += 'ElementLine['+element.x1+''+json.unit+' '+element.y1+''+json.unit+' '+element.x2+''+json.unit+' '+element.y2+''+json.unit+' '+element.thickness+''+json.unit+']\n'
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break
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case 'arc':
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pcb += 'ElementArc['+element.x+''+json.unit+' '+element.y+''+json.unit+' '+element.radius+''+json.unit+' '+element.radius+''+json.unit+' '+((((180-element.start)%360)+360)%360)+' '+(-1*(element.angle))+' '+element.thickness+''+json.unit+']\n'
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break
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case 'pad':
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var x1, y1, x2, y2, thickness
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if (element.width>element.height) {
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x1 = element.x-element.width/2+element.height/2
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y1 = element.y
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x2 = element.x+element.width/2-element.height/2
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y2 = element.y
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thickness = element.height
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} else {
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x1 = element.x
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y1 = element.y-element.height/2+element.width/2
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x2 = element.x
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y2 = element.y+element.height/2-element.width/2
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thickness = element.width
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}
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pcb += 'Pad['+x1+''+json.unit+' '+y1+''+json.unit+' '+x2+''+json.unit+' '+y2+''+json.unit+' '+thickness+''+json.unit+' '+0+''+json.unit+' '+thickness+''+json.unit+' "" "'+element.number+'" "'
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if (!element.round) {
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pcb += 'square'
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}
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pcb += '"]\n'
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break
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case 'pin':
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pcb += 'Pin['+element.x+''+json.unit+' '+element.y+''+json.unit+' '+element.thickness+''+json.unit+' '+0+''+json.unit+' '+thickness+''+json.unit+' '+element.drill+''+json.unit+' "" "'+element.number+'" "'
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if (!element.round) {
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pcb += 'square'
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}
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pcb += '"]\n'
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break
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default:
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console.log('unknown element type: '+element.type)
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}
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}
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pcb += ')\n'
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return pcb
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}
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// convert CuVoodoo Land Pattern JSON to KiCad s-expression footprint module/file
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function json2kicad(json) {
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// create file and add info
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var kicad = ''
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kicad += '# footprint generated from CuVoodoo Land Pattern\n'
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kicad += '# author: '+json.author+'\n'
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kicad += '# version: '+json.version+'\n'
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kicad += '# date: '+json.date+'\n'
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kicad += '(module "'+json.name+'" (layer F.Cu)\n'
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// add element parts
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for (var element_i in json.elements) {
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var element = json.elements[element_i]
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switch (element.type) {
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case 'line':
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kicad += '(fp_line (start '+convert_unit(element.x1,json.unit,'mm')+' '+convert_unit(element.y1,json.unit,'mm')+') (end '+convert_unit(element.x2,json.unit,'mm')+' '+convert_unit(element.y2,json.unit,'mm')+') (layer F.SilkS) (width '+convert_unit(element.thickness,json.unit,'mm')+'))\n'
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break
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case 'arc':
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kicad += '(fp_arc (start '+convert_unit(element.x,json.unit,'mm')+' '+convert_unit(element.y,json.unit,'mm')+') (end '+convert_unit((element.x+element.radius*Math.cos(((-1*element.start)%360)/360.0*Math.PI*2)),json.unit,'mm')+' '+convert_unit((element.y-element.radius*Math.sin(((-1*element.start)%360)/360.0*Math.PI*2)),json.unit,'mm')+') (angle '+element.angle+') (layer F.SilkS) (width '+convert_unit(element.thickness,json.unit,'mm')+'))\n'
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break
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case 'pad':
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kicad += '(pad "'+element.number+'" smd '
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if (element.round) {
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kicad += 'oval'
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} else {
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kicad += 'rect'
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}
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kicad += ' (at '+convert_unit(element.x,json.unit,'mm')+' '+convert_unit(element.y,json.unit,'mm')+')'
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kicad += ' (size '+convert_unit(element.width,json.unit,'mm')+' '+convert_unit(element.height,json.unit,'mm')+')'
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kicad += ' (layers F.Cu F.Paste F.Mask)'
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kicad += ')\n'
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break
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case 'pin':
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var x = (element.x1+element.x2)/2
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var y = (element.y1+element.y2)/2
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var length = Math.sqrt(Math.pow(element.x2-element.x1,2)+Math.pow(element.y2-element.y1,2))
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var angle = Math.atan2(element.y2-element.y1,element.x2-element.x1)*180/Math.PI;
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kicad += '(pad "'+element.number+'" smd '
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if (element.round) {
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kicad += 'oval'
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} else {
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kicad += 'rect'
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}
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kicad += ' (at '+convert_unit(x,json.unit,'mm')+' '+convert_unit(y,json.unit,'mm')+' '+angle+')'
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kicad += ' (size '+convert_unit(length,json.unit,'mm')+' '+convert_unit(element.thickness,json.unit,'mm')+')'
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kicad += ' (drill '+convert_unit(element.drill,json.unit,'mm')
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kicad += ' (layers F.Cu F.Paste F.Mask)'
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kicad += ')\n'
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break
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default:
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console.log('unknown element type: '+element.type)
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}
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}
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kicad += ')\n'
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return kicad
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}
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// convert JSON to eagle library
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function json2eagle(json) {
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// create eagle xml library
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var docType = document.implementation.createDocumentType('eagle', 'SYSTEM', 'eagle.dtd');
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var xml = document.implementation.createDocument('', 'eagle', docType);
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xml.documentElement.setAttribute('version','6.0')
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var comment = xml.createComment('footprint generated from CuVoodoo Land Pattern, author: '+json.author+', version: '+json.version+', date: '+json.date)
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xml.documentElement.appendChild(comment)
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var drawing = xml.createElement('drawing')
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xml.documentElement.appendChild(drawing)
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// add layers
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var layers = xml.createElement('layers')
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drawing.appendChild(layers)
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layers_desc = [ { number: 1, name: 'Top', color: 4, fill: 1, visible: 'yes', active: 'yes'},
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{ number: 17, name: 'Pads', color: 2, fill: 1, visible: 'yes', active: 'yes'},
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{ number: 21, name: 'tPLace', color: 7, fill: 1, visible: 'yes', active: 'yes'},
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]
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for (layer_i in layers_desc) {
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var layer_desc = layers_desc[layer_i]
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var layer = xml.createElement('layer')
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for (key in layer_desc) {
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layer.setAttribute(key,layer_desc[key])
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}
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layers.appendChild(layer)
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}
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// create library
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var library = xml.createElement('library')
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drawing.appendChild(library)
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// add description
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var description = xml.createElement('description')
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description.textContent = json.name
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library.appendChild(description)
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// add package
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var packages = xml.createElement('packages')
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library.appendChild(packages)
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var packag = xml.createElement('package')
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packag.setAttribute('name','OSHW')
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packages.appendChild(packag)
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var desc = xml.createElement('description')
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desc.textContent = json.name
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packag.appendChild(desc)
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// add element parts
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// note: in eagle the origin is the bottom left corner (negate y to be compatible with the json coordinate system)
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for (var element_i in json.elements) {
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var element = json.elements[element_i]
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switch (element.type) {
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case 'line':
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var line = xml.createElement('wire')
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line.setAttribute('x1',convert_unit(element.x1,json.unit,'mm'))
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line.setAttribute('y1',convert_unit(-1*element.y1,json.unit,'mm'))
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line.setAttribute('x2',convert_unit(element.x2,json.unit,'mm'))
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line.setAttribute('y2',convert_unit(-1*element.y2,json.unit,'mm'))
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line.setAttribute('width',convert_unit(element.thickness,json.unit,'mm'))
|
|
line.setAttribute('layer','21')
|
|
packag.appendChild(line)
|
|
break
|
|
case 'arc':
|
|
var wire = xml.createElement('wire')
|
|
wire.setAttribute('x1',convert_unit(element.x+element.radius*Math.cos(((-1*element.start)%360)/360.0*Math.PI*2),json.unit,'mm'))
|
|
wire.setAttribute('y1',convert_unit(-1*element.y+element.radius*Math.sin(((-1*element.start)%360)/360.0*Math.PI*2),json.unit,'mm'))
|
|
wire.setAttribute('x2',convert_unit(element.x+element.radius*Math.cos(((-1*(element.start+element.angle))%360)/360.0*Math.PI*2),json.unit,'mm'))
|
|
wire.setAttribute('y2',convert_unit(-1*element.y+element.radius*Math.sin(((-1*(element.start+element.angle))%360)/360.0*Math.PI*2),json.unit,'mm'))
|
|
wire.setAttribute('curve',-1*element.angle)
|
|
wire.setAttribute('width',convert_unit(element.thickness,json.unit,'mm'))
|
|
wire.setAttribute('layer','21')
|
|
wire.setAttribute('cap','round')
|
|
packag.appendChild(wire)
|
|
break
|
|
case 'pad':
|
|
var pad = xml.createElement('smd')
|
|
pad.setAttribute('name',element.number)
|
|
pad.setAttribute('x',convert_unit(element.x,json.unit,'mm'))
|
|
pad.setAttribute('y',convert_unit(-1*element.y,json.unit,'mm'))
|
|
pad.setAttribute('dx',convert_unit(element.width,json.unit,'mm'))
|
|
pad.setAttribute('dy',convert_unit(element.height,json.unit,'mm'))
|
|
pad.setAttribute('layer','1')
|
|
if (element.round) {
|
|
pad.setAttribute('roundness',100)
|
|
} else {
|
|
pad.setAttribute('roundness',0)
|
|
}
|
|
packag.appendChild(pad)
|
|
break
|
|
case 'pin':
|
|
var pin = xml.createElement('pad')
|
|
pin.setAttribute('name',element.number)
|
|
pin.setAttribute('x',convert_unit(element.x,json.unit,'mm'))
|
|
pin.setAttribute('y',convert_unit(-1*element.y,json.unit,'mm'))
|
|
pin.setAttribute('drill',convert_unit(element.drill,json.unit,'mm'))
|
|
pin.setAttribute('diameter',convert_unit(element.thickness,json.unit,'mm'))
|
|
pin.setAttribute('layer','17')
|
|
if (element.round) {
|
|
pin.setAttribute('shape','round')
|
|
} else {
|
|
pin.setAttribute('shape','square')
|
|
}
|
|
packag.appendChild(pin)
|
|
break
|
|
default:
|
|
console.log('unknown element type: '+element.type)
|
|
}
|
|
}
|
|
return xml
|
|
}
|