37c005c222
See the clone at https://gitorious.org/fg/canvas-hackers-fgdata/source/topics/canvas-radar:
40 lines
1.6 KiB
Text
40 lines
1.6 KiB
Text
# WARNING: *.draw files will be deprecated, see: http://wiki.flightgear.org/MapStructure
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var draw_taxiways = func(group, apt, lod) { # TODO: the LOD arg isn't stricly needed here,
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# the layer is a conventional canvas group, so it can access its map
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# parent and just read the "range" property to do LOD handling
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group.set("z-index",-100) # HACK: we need to encapsulate this
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.set("stroke", "none");
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# print("drawing taxiways for:", apt.id);
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# Taxiways drawn first so the runways and parking positions end up on top.
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# Preallocate all paths at once to gain some speed
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var taxi_paths = group.createChildren("path", size(apt.taxiways));
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var i = 0;
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foreach(var taxi; apt.taxiways) {
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var clr = SURFACECOLORS[taxi.surface];
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if (clr == nil) { clr = SURFACECOLORS[0]};
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var txi = Runway.new(taxi);
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var beg1 = txi.pointOffCenterline(0, 0.5 * taxi.width);
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var beg2 = txi.pointOffCenterline(0, -0.5 * taxi.width);
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var end1 = txi.pointOffCenterline(taxi.length, 0.5 * taxi.width);
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var end2 = txi.pointOffCenterline(taxi.length, -0.5 * taxi.width);
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taxi_paths[i].setColorFill(clr.r, clr.g, clr.b)
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.setDataGeo
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(
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[ canvas.Path.VG_MOVE_TO,
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canvas.Path.VG_LINE_TO,
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canvas.Path.VG_LINE_TO,
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canvas.Path.VG_LINE_TO,
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canvas.Path.VG_CLOSE_PATH ],
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[ beg1[0], beg1[1],
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beg2[0], beg2[1],
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end2[0], end2[1],
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end1[0], end1[1] ]
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);
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i += 1;
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}
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}
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