126 lines
3.6 KiB
Text
126 lines
3.6 KiB
Text
# See: http://wiki.flightgear.org/MapStructure
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# Class things:
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var name = 'VOR_FG1000';
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var parents = [DotSym];
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var __self__ = caller(0)[0];
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DotSym.makeinstance( name, __self__ );
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SymbolLayer.get(name).df_style = {
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line_width: 3,
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scale_factor: 1,
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font: "LiberationFonts/LiberationSans-Regular.ttf",
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font_color: [0,0,0],
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font_size: 28,
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icon_color: [0.5, 0, 0.5],
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circle_color: [0.2,0.2,1.0],
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circle_radius: 64,
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show_labels: 1,
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};
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var element_type = "group"; # we want a group, becomes "me.element"
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##
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# used during initialization to populate the symbol cache with a VOR symbol
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#
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var drawVOR = func(group) {
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# Circle around the edge
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var circle = group.createChild("path")
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.moveTo(0 -circle_radius,0)
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.arcSmallCW(circle_radius, circle_radius, 0, 2 * circle_radius,0)
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.arcSmallCW(circle_radius, circle_radius, 0,-2 * circle_radius,0)
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.close()
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.setStrokeLineWidth(line_width)
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.setColor(circle_color)
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.set("z-index",-2);
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# Magnetic North marking. Will be rotated later
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circle.moveTo(0, 0);
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circle.lineTo(0, -circle_radius);
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# 10-degree markings
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for (var i = 0; i < 36; i = i + 1) {
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theta = D2R * (i * 10.0);
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# Start at 90% of the circle radius
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var start_x = 0.9 * circle_radius * math.sin(theta);
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var start_y = -0.9 * circle_radius * math.cos(theta);
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var end_x = circle_radius * math.sin(theta);
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var end_y = -circle_radius * math.cos(theta);
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circle.moveTo(start_x, start_y);
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circle.lineTo(end_x, end_y);
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}
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# 5 - degree markings - 5% of radius
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for (var i = 0; i < 36; i = i + 1) {
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theta = D2R * (i * 10.0 + 5.0);
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# Start at 95% of the circle radius
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var start_x = 0.95 * circle_radius * math.sin(theta);
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var start_y = -0.95 * circle_radius * math.cos(theta);
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var end_x = circle_radius * math.sin(theta);
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var end_y = -circle_radius * math.cos(theta);
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circle.moveTo(start_x, start_y);
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circle.lineTo(end_x, end_y);
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}
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}
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var _name = name;
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var init = func {
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# initialize the cached fix symbol
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var draw_fn = me.getOption('draw_function');
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if(typeof(draw_fn) != 'func')
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draw_fn = drawVOR;
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var cache = StyleableCacheable.new(
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name:_name,
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draw_func: draw_fn,
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cache: SymbolCache256x256,
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draw_mode: SymbolCache.DRAW_CENTERED,
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relevant_keys: ["line_width", "icon_color", "circle_color", "circle_radius"],
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);
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cache.render(me.element, me.style).setScale(me.style.scale_factor);
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# Rotate the symbol to take into account the magnetic variation for the VOR.
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me.element.setRotation(me.model.magvar * D2R);
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# Center icon
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me.element.createChild("path")
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.setRotation(- me.model.magvar * D2R)
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.moveTo(-15,0)
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.lineTo(-7.5,12.5)
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.lineTo(7.5,12.5)
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.lineTo(15,0)
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.lineTo(7.5,-12.5)
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.lineTo(-7.5,-12.5)
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.close()
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.setStrokeLineWidth(me.getStyle('line_width', 1))
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.setColor(me.getStyle('icon_color', [0,0.6,0.85]))
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.set("z-index",-2);
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# non-cached stuff: Symbol in use and labels.
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if (me.style.show_labels){
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var txt_offset = me.getStyle('text_offset', [3, 0]);
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var txt_alignment = me.getStyle('text_alignment', 'center-bottom');
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var txt_color = me.getStyle('text_color', [0,0.6,0.85]);
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var txt_bgcolor = me.getStyle('text_bgcolor', [0,0,0,0]);
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var txt_mode = me.getStyle('text_mode', canvas.Text.TEXT);
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var txt_padding = me.getStyle('text_padding', 0);
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var txt_size = me.getStyle('font_size', 14);
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me.text_fix = me.newText(me.model.id).
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setScale(me.style.scale_factor).
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setTranslation(txt_offset).
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setRotation(- me.model.magvar * D2R).
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setFontSize(txt_size).
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setAlignment(txt_alignment).
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setPadding(txt_padding).
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setDrawMode(txt_mode).
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setColor(txt_color).
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setColorFill(txt_bgcolor);
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}
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}
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var draw = func {me.callback('draw');};
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