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Moving path tools into Generator()

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This commit is contained in:
Devine Lu Linvega 2018-05-10 09:56:55 +12:00
parent d4e197f08e
commit b24475662a
3 changed files with 82 additions and 5 deletions
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1
desktop/sources/index.html
View File

@ -9,6 +9,7 @@
<script type="text/javascript" src="scripts/render.js"></script>
<script type="text/javascript" src="scripts/interface.js"></script>
<script type="text/javascript" src="scripts/tool.js"></script>
<script type="text/javascript" src="scripts/generator.js"></script>
<script type="text/javascript" src="scripts/picker.js"></script>

75
desktop/sources/scripts/generator.js Normal file
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@ -0,0 +1,75 @@
function Generator(layer)
{
this.layer = layer;
function operate(layer,offset,scale)
{
var l = copy(layer)
for(k1 in l){
var seg = l[k1];
for(k2 in seg.vertices){
seg.vertices[k2].x += offset.x
seg.vertices[k2].x *= scale
seg.vertices[k2].y += offset.y
seg.vertices[k2].y *= scale
}
}
return l;
}
function render(segment)
{
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){
html += `M${vertex.x},${vertex.y} `
}
else if(type == "line"){
html += `L${vertex.x},${vertex.y} `;
}
else if(type == "arc_c"){
html += next ? `A${next.x - vertex.x},${next.y - vertex.y} 0 0,1 ${next.x},${next.y} ` : '';
}
else if(type == "arc_r"){
html += next ? `A${next.x - vertex.x},${next.y - vertex.y} 0 0,0 ${next.x},${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:${type}`)
}
}
return html
}
this.toString = function(offset = {x:0,y:0}, scale = 1)
{
var s = ""
var layer = operate(this.layer,offset,scale)
for(id in layer){
var seg = layer[id];
s += `${render(seg)}`
}
return s.trim()
}
function copy(data){ return data ? JSON.parse(JSON.stringify(data)) : []; }
}

11
desktop/sources/scripts/guide.js
View File

@ -109,15 +109,16 @@ function Guide()
this.draw_paths = function()
{
var paths = dotgrid.tool.paths_mod({x:15,y:15},scale)
this.draw_path(paths,0)
var path = new Generator(dotgrid.tool.layer()).toString({x:15,y:15},scale)
var style = dotgrid.tool.style()
this.draw_path(path,style)
}
this.draw_path = function(paths,id)
this.draw_path = function(path,style)
{
var style = dotgrid.tool.styles[id]
var ctx = this.el.getContext('2d');
var p = new Path2D(paths[id]);
var p = new Path2D(path);
ctx.strokeStyle = style.color;
ctx.lineWidth = style.thickness * scale;