77 lines
1.7 KiB
JavaScript
77 lines
1.7 KiB
JavaScript
function Generator(layer)
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{
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this.layer = layer;
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function operate(layer,offset,scale)
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{
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var l = copy(layer)
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for(k1 in l){
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var seg = l[k1];
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for(k2 in seg.vertices){
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seg.vertices[k2].x += offset.x
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seg.vertices[k2].x *= scale
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seg.vertices[k2].y += offset.y
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seg.vertices[k2].y *= scale
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}
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}
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return l;
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}
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this.render = function(segment)
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{
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var type = segment.type;
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var vertices = segment.vertices;
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var html = '';
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var skip = 0;
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for(id in vertices){
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if(skip > 0){ skip -= 1; continue; }
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var vertex = vertices[id]
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var next = vertices[parseInt(id)+1]
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var after_next = vertices[parseInt(id)+2]
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if(id == 0){
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html += `M${vertex.x},${vertex.y} `
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}
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else if(type == "line"){
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html += `L${vertex.x},${vertex.y} `;
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}
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else if(type == "arc_c"){
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html += next ? `A${next.x - vertex.x},${next.y - vertex.y} 0 0,1 ${next.x},${next.y} ` : '';
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}
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else if(type == "arc_r"){
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html += next ? `A${next.x - vertex.x},${next.y - vertex.y} 0 0,0 ${next.x},${next.y} ` : '';
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}
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else if(type == "bezier"){
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html += next && after_next ?`Q${next.x},${next.y} ${after_next.x},${after_next.y} ` : '';
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skip = 1
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}
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else{
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console.warn(`unknown type:${type}`)
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}
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}
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return html
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}
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this.toString = function(offset = {x:0,y:0}, scale = 1)
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{
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var s = ""
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var layer = operate(this.layer,offset,scale)
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console.log(layer)
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for(id in layer){
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var seg = layer[id];
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s += `${this.render(seg)}`
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}
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return s.trim()
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}
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function copy(data){ return data ? JSON.parse(JSON.stringify(data)) : []; }
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} |