Started Live version

web/scripts/generator.js

@@ -0,0 +1,114 @@
+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) }; }
+}