function Generator(layer,style) { this.layer = layer; this.style = style; function operate(layer,offset,scale,mirror = 0,angle = 0) { var l = copy(layer) for(k1 in l){ var seg = l[k1]; for(k2 in seg.vertices){ if(mirror == 1){ seg.vertices[k2].x = (dotgrid.tool.settings.size.width) - seg.vertices[k2].x } if(mirror == 2){ seg.vertices[k2].y = (dotgrid.tool.settings.size.height) - seg.vertices[k2].y } // Offset seg.vertices[k2].x += offset.x seg.vertices[k2].y += offset.y // Rotate var center = {x:(dotgrid.tool.settings.size.width/2)+offset.x,y:(dotgrid.tool.settings.size.height/2)+offset.y} seg.vertices[k2] = rotate_point(seg.vertices[k2],center,angle) // Scale seg.vertices[k2].x *= scale seg.vertices[k2].y *= scale } } return l; } this.render = function(prev,segment,mirror = 0) { var type = segment.type; var vertices = segment.vertices; var html = ''; var skip = 0; for(id in vertices){ if(skip > 0){ skip -= 1; continue; } var vertex = vertices[id] var next = vertices[parseInt(id)+1] var after_next = vertices[parseInt(id)+2] if(id == 0 && !prev || id == 0 && prev && (prev.x != vertex.x || prev.y != vertex.y)){ html += `M${vertex.x},${vertex.y} ` } if(type == "line"){ html += `L${vertex.x},${vertex.y} `; } else if(type == "arc_c"){ var clock = mirror > 0 ? '0,0' : '0,1' html += next ? `A${Math.abs(next.x - vertex.x)},${Math.abs(next.y - vertex.y)} 0 ${clock} ${next.x},${next.y} ` : ''; } else if(type == "arc_r"){ var clock = mirror > 0 ? '0,1' : '0,0' html += next ? `A${Math.abs(next.x - vertex.x)},${Math.abs(next.y - vertex.y)} 0 ${clock} ${next.x},${next.y} ` : ''; } else if(type == "bezier"){ html += next && after_next ?`Q${next.x},${next.y} ${after_next.x},${after_next.y} ` : ''; skip = 1 } else{ console.warn(`unknown type:${type}`) } } if(segment.type == "close"){ html += "Z " } return html } this.convert = function(layer,mirror,angle) { var s = "" var prev = null for(id in layer){ var seg = layer[id]; s += `${this.render(prev,seg,mirror)}` prev = seg.vertices ? seg.vertices[seg.vertices.length-1] : null } return s; } this.toString = function(offset = {x:0,y:0}, scale = 1, mirror = this.style && this.style.mirror_style ? this.style.mirror_style : 0) { var s = this.convert(operate(this.layer,offset,scale)) if(mirror == 1 || mirror == 2){ s += this.convert(operate(this.layer,offset,scale,mirror),mirror) } if(mirror == 3){ s += this.convert(operate(this.layer,offset,scale,mirror,120),mirror) s += this.convert(operate(this.layer,offset,scale,mirror,240),mirror) } if(mirror == 4){ s += this.convert(operate(this.layer,offset,scale,mirror,72),mirror) s += this.convert(operate(this.layer,offset,scale,mirror,144),mirror) s += this.convert(operate(this.layer,offset,scale,mirror,216),mirror) s += this.convert(operate(this.layer,offset,scale,mirror,288),mirror) } return s } function copy(data){ return data ? JSON.parse(JSON.stringify(data)) : []; } function rotate_point(point, origin, angle){ angle = angle * Math.PI / 180.0; return { x: (Math.cos(angle) * (point.x-origin.x) - Math.sin(angle) * (point.y-origin.y) + origin.x).toFixed(1), y: (Math.sin(angle) * (point.x-origin.x) + Math.cos(angle) * (point.y-origin.y) + origin.y).toFixed(1) }; } }