127 lines
3.6 KiB
Text
127 lines
3.6 KiB
Text
# See: http://wiki.flightgear.org/MapStructure
|
|
# Class things:
|
|
var name = 'VOR_FG1000';
|
|
var parents = [DotSym];
|
|
var __self__ = caller(0)[0];
|
|
DotSym.makeinstance( name, __self__ );
|
|
|
|
SymbolLayer.get(name).df_style = {
|
|
line_width: 3,
|
|
scale_factor: 1,
|
|
font: "LiberationFonts/LiberationSans-Regular.ttf",
|
|
font_color: [0,0,0],
|
|
font_size: 28,
|
|
icon_color: [0.5, 0, 0.5],
|
|
circle_color: [0.2,0.2,1.0],
|
|
circle_radius: 64,
|
|
show_labels: 1,
|
|
};
|
|
|
|
|
|
var element_type = "group"; # we want a group, becomes "me.element"
|
|
|
|
##
|
|
# used during initialization to populate the symbol cache with a VOR symbol
|
|
#
|
|
var drawVOR = func(group) {
|
|
|
|
# Center icon
|
|
group.createChild("path")
|
|
.moveTo(-15,0)
|
|
.lineTo(-7.5,12.5)
|
|
.lineTo(7.5,12.5)
|
|
.lineTo(15,0)
|
|
.lineTo(7.5,-12.5)
|
|
.lineTo(-7.5,-12.5)
|
|
.close()
|
|
.setStrokeLineWidth(line_width)
|
|
.setColor(icon_color)
|
|
.set("z-index",-2);
|
|
|
|
# Circle around the edge
|
|
var circle = group.createChild("path")
|
|
.moveTo(0 -circle_radius,0)
|
|
.arcSmallCW(circle_radius, circle_radius, 0, 2 * circle_radius,0)
|
|
.arcSmallCW(circle_radius, circle_radius, 0,-2 * circle_radius,0)
|
|
.close()
|
|
.setStrokeLineWidth(line_width)
|
|
.setColor(circle_color)
|
|
.set("z-index",-2);
|
|
|
|
# Markings, which need to take into account the magnetic variation.
|
|
# We should calculate this for each VOR and rotate them, but we don't
|
|
# have a way to determine the magnetic variation at each VOR site.
|
|
var mag_var = getprop("/environment/magnetic-variation-deg");
|
|
|
|
# Magnetic North marking.
|
|
var theta = D2R * mag_var;
|
|
circle.moveTo(0, 0);
|
|
circle.lineTo(circle_radius * math.sin(theta),
|
|
-circle_radius * math.cos(theta));
|
|
|
|
|
|
# 10-degree markings
|
|
for (var i = 0; i < 36; i = i + 1) {
|
|
theta = D2R * (i * 10.0 + mag_var);
|
|
# Start at 90% of the circle radius
|
|
var start_x = 0.9 * circle_radius * math.sin(theta);
|
|
var start_y = -0.9 * circle_radius * math.cos(theta);
|
|
var end_x = circle_radius * math.sin(theta);
|
|
var end_y = -circle_radius * math.cos(theta);
|
|
|
|
circle.moveTo(start_x, start_y);
|
|
circle.lineTo(end_x, end_y);
|
|
}
|
|
|
|
# 5 - degree markings - 5% of radius
|
|
for (var i = 0; i < 36; i = i + 1) {
|
|
theta = D2R * (i * 10.0 + 5.0 + mag_var);
|
|
# Start at 95% of the circle radius
|
|
var start_x = 0.95 * circle_radius * math.sin(theta);
|
|
var start_y = -0.95 * circle_radius * math.cos(theta);
|
|
var end_x = circle_radius * math.sin(theta);
|
|
var end_y = -circle_radius * math.cos(theta);
|
|
|
|
circle.moveTo(start_x, start_y);
|
|
circle.lineTo(end_x, end_y);
|
|
}
|
|
|
|
}
|
|
var _name = name;
|
|
|
|
var init = func {
|
|
# initialize the cached fix symbol
|
|
var draw_fn = me.getOption('draw_function');
|
|
if(typeof(draw_fn) != 'func')
|
|
draw_fn = drawVOR;
|
|
|
|
var cache = StyleableCacheable.new(
|
|
name:_name,
|
|
draw_func: draw_fn,
|
|
cache: SymbolCache256x256,
|
|
draw_mode: SymbolCache.DRAW_CENTERED,
|
|
relevant_keys: ["line_width", "icon_color", "circle_color", "circle_radius"],
|
|
);
|
|
cache.render(me.element, me.style).setScale(me.style.scale_factor);
|
|
|
|
var txt_offset = me.getStyle('text_offset', [3, 0]);
|
|
var txt_alignment = me.getStyle('text_alignment', 'left-bottom');
|
|
var txt_color = me.getStyle('text_color', [0,0.6,0.85]);
|
|
var txt_bgcolor = me.getStyle('text_bgcolor', [0,0,0,0]);
|
|
var txt_mode = me.getStyle('text_mode', canvas.Text.TEXT);
|
|
var txt_padding = me.getStyle('text_padding', 0);
|
|
var txt_size = me.getStyle('font_size', 14);
|
|
# non-cached stuff:
|
|
if (me.style.show_labels){
|
|
me.text_fix = me.newText(me.model.id).
|
|
setScale(me.style.scale_factor).
|
|
setTranslation(txt_offset).
|
|
setFontSize(txt_size).
|
|
setAlignment(txt_alignment).
|
|
setPadding(txt_padding).
|
|
setDrawMode(txt_mode).
|
|
setColor(txt_color).
|
|
setColorFill(txt_bgcolor);
|
|
}
|
|
}
|
|
var draw = func {me.callback('draw');};
|