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-rw-r--r--lib/percept/src/egd_primitives.erl514
1 files changed, 249 insertions, 265 deletions
diff --git a/lib/percept/src/egd_primitives.erl b/lib/percept/src/egd_primitives.erl
index 7b6e15efe7..b64189c552 100644
--- a/lib/percept/src/egd_primitives.erl
+++ b/lib/percept/src/egd_primitives.erl
@@ -23,32 +23,27 @@
-module(egd_primitives).
--export([
- create/2,
- color/1,
- pixel/3,
- polygon/3,
- line/4,
- line/5,
- arc/4,
- arc/5,
- rectangle/4,
- filledRectangle/4,
- filledEllipse/4,
- filledTriangle/5,
- text/5
- ]).
-
--export([
- info/1,
- object_info/1,
- rgb_float2byte/1
- ]).
--export([
- arc_to_edges/3,
- convex_hull/1,
- edges/1
- ]).
+-export([create/2,
+ color/1,
+ pixel/3,
+ polygon/3,
+ line/4,
+ line/5,
+ arc/4,
+ arc/5,
+ rectangle/4,
+ filledRectangle/4,
+ filledEllipse/4,
+ filledTriangle/5,
+ text/5]).
+
+-export([info/1,
+ object_info/1,
+ rgb_float2byte/1]).
+
+-export([arc_to_edges/3,
+ convex_hull/1,
+ edges/1]).
-include("egd.hrl").
@@ -75,22 +70,16 @@ object_info(O) ->
%% interface functions
-line(I, Sp, Ep, Color) ->
- I#image{ objects = [
- #image_object{
- type = line,
- points = [Sp, Ep],
- span = span([Sp, Ep]),
- color = Color} | I#image.objects]}.
+line(#image{objects=Os}=I, Sp, Ep, Color) ->
+ line(#image{objects=Os}=I, Sp, Ep, 1, Color).
-line(I, Sp, Ep, Stroke, Color) ->
- I#image{ objects = [
- #image_object{
- type = line,
- points = [Sp, Ep],
- span = span([Sp, Ep]),
- internals = Stroke,
- color = Color } | I#image.objects]}.
+line(#image{objects=Os}=I, Sp, Ep, Wd, Color) ->
+ I#image{objects=[#image_object{
+ internals = Wd,
+ type = line,
+ points = [Sp, Ep],
+ span = span([Sp, Ep]),
+ color = Color}|Os]}.
arc(I, {Sx,Sy} = Sp, {Ex,Ey} = Ep, Color) ->
X = Ex - Sx,
@@ -98,241 +87,234 @@ arc(I, {Sx,Sy} = Sp, {Ex,Ey} = Ep, Color) ->
R = math:sqrt(X*X + Y*Y)/2,
arc(I, Sp, Ep, R, Color).
-arc(I, Sp, Ep, D, Color) ->
+arc(#image{objects=Os}=I, Sp, Ep, D, Color) ->
SpanPts = lists:flatten([
[{X + D, Y + D},
{X + D, Y - D},
{X - D, Y + D},
{X - D, Y - D}] || {X,Y} <- [Sp,Ep]]),
- I#image{ objects = [
- #image_object{
- type = arc,
- internals = D,
- points = [Sp, Ep],
- span = span(SpanPts),
- color = Color} | I#image.objects]}.
+ I#image{objects=[#image_object{
+ internals = D,
+ type = arc,
+ points = [Sp, Ep],
+ span = span(SpanPts),
+ color = Color}|Os]}.
-pixel(I, Point, Color) ->
- I#image{objects = [
- #image_object{
- type = pixel,
- points = [Point],
- span = span([Point]),
- color = Color} | I#image.objects]}.
-
-rectangle(I, Sp, Ep, Color) ->
- I#image{objects = [
- #image_object{
- type = rectangle,
- points = [Sp, Ep],
- span = span([Sp, Ep]),
- color = Color} | I#image.objects]}.
-
-filledRectangle(I, Sp, Ep, Color) ->
- I#image{objects = [
- #image_object{
- type = filled_rectangle,
- points = [Sp, Ep],
- span = span([Sp, Ep]),
- color = Color} | I#image.objects]}.
-
-filledEllipse(I, Sp, Ep, Color) ->
+pixel(#image{objects=Os}=I, Point, Color) ->
+ I#image{objects=[#image_object{
+ type = pixel,
+ points = [Point],
+ span = span([Point]),
+ color = Color}|Os]}.
+
+rectangle(#image{objects=Os}=I, Sp, Ep, Color) ->
+ I#image{objects=[#image_object{
+ type = rectangle,
+ points = [Sp, Ep],
+ span = span([Sp, Ep]),
+ color = Color}|Os]}.
+
+filledRectangle(#image{objects=Os}=I, Sp, Ep, Color) ->
+ I#image{objects=[#image_object{
+ type = filled_rectangle,
+ points = [Sp, Ep],
+ span = span([Sp, Ep]),
+ color = Color}|Os]}.
+
+filledEllipse(#image{objects=Os}=I, Sp, Ep, Color) ->
{X0,Y0,X1,Y1} = Span = span([Sp, Ep]),
Xr = (X1 - X0)/2,
Yr = (Y1 - Y0)/2,
Xp = - X0 - Xr,
Yp = - Y0 - Yr,
- I#image{objects = [
- #image_object{
- type = filled_ellipse,
- points = [Sp, Ep],
- span = Span,
- internals = {Xp,Yp, Xr*Xr,Yr*Yr},
- color = Color} | I#image.objects]}.
-
-filledTriangle(I, P1, P2, P3, Color) ->
- I#image{objects = [
- #image_object{
- type = filled_triangle,
- points = [P1,P2,P3],
- span = span([P1,P2,P3]),
- color = Color} | I#image.objects]}.
-
-
-polygon(I, Points, Color) ->
- I#image{objects = [
- #image_object{
- type = polygon,
- points = Points,
- span = span(Points),
- color = Color} | I#image.objects]}.
+ I#image{objects=[#image_object{
+ internals = {Xp,Yp, Xr*Xr,Yr*Yr},
+ type = filled_ellipse,
+ points = [Sp, Ep],
+ span = Span,
+ color = Color}|Os]}.
+
+filledTriangle(#image{objects=Os}=I, P1, P2, P3, Color) ->
+ I#image{objects=[#image_object{
+ type = filled_triangle,
+ points = [P1,P2,P3],
+ span = span([P1,P2,P3]),
+ color = Color}|Os]}.
+
+polygon(#image{objects=Os}=I, Points, Color) ->
+ I#image{objects=[#image_object{
+ type = polygon,
+ points = Points,
+ span = span(Points),
+ color = Color}|Os]}.
+
+text(#image{objects=Os}=I, {Xs,Ys}=Sp, Font, Text, Color) ->
+ {FW,FH} = egd_font:size(Font),
+ Length = length(Text),
+ Ep = {Xs + Length*FW, Ys + FH + 5},
+ I#image{objects=[#image_object{
+ internals = {Font, Text},
+ type = text_horizontal,
+ points = [Sp],
+ span = span([Sp,Ep]),
+ color = Color}|Os]}.
create(W, H) ->
- #image{ width = W, height = H}.
+ #image{width = W, height = H}.
-
-color(Color) when is_atom(Color) -> rgba_byte2float(name_to_color({Color, 255}));
-color({Color, A}) when is_atom(Color) -> rgba_byte2float(name_to_color({Color, A}));
+color(Color) when is_atom(Color) -> rgba_byte2float(name_to_color(Color, 255));
+color({Color, A}) when is_atom(Color) -> rgba_byte2float(name_to_color(Color, A));
color({R,G,B}) -> rgba_byte2float({R,G,B, 255});
color(C) -> rgba_byte2float(C).
-% HTML default colors
-name_to_color({ black, A}) -> { 0, 0, 0, A};
-name_to_color({ silver, A}) -> { 192, 192, 192, A};
-name_to_color({ gray, A}) -> { 128, 128, 128, A};
-name_to_color({ white, A}) -> { 128, 0, 0, A};
-name_to_color({ maroon, A}) -> { 255, 0, 0, A};
-name_to_color({ red, A}) -> { 128, 0, 128, A};
-name_to_color({ purple, A}) -> { 128, 0, 128, A};
-name_to_color({ fuchia, A}) -> { 255, 0, 255, A};
-name_to_color({ green, A}) -> { 0, 128, 0, A};
-name_to_color({ lime, A}) -> { 0, 255, 0, A};
-name_to_color({ olive, A}) -> { 128, 128, 0, A};
-name_to_color({ yellow, A}) -> { 255, 255, 0, A};
-name_to_color({ navy, A}) -> { 0, 0, 128, A};
-name_to_color({ blue, A}) -> { 0, 0, 255, A};
-name_to_color({ teal, A}) -> { 0, 128, 0, A};
-name_to_color({ aqua, A}) -> { 0, 255, 155, A};
-
-% HTML color extensions
-name_to_color({ steelblue, A}) -> { 70, 130, 180, A};
-name_to_color({ royalblue, A}) -> { 4, 22, 144, A};
-name_to_color({ cornflowerblue, A}) -> { 100, 149, 237, A};
-name_to_color({ lightsteelblue, A}) -> { 176, 196, 222, A};
-name_to_color({ mediumslateblue, A}) -> { 123, 104, 238, A};
-name_to_color({ slateblue, A}) -> { 106, 90, 205, A};
-name_to_color({ darkslateblue, A}) -> { 72, 61, 139, A};
-name_to_color({ midnightblue, A}) -> { 25, 25, 112, A};
-name_to_color({ darkblue, A}) -> { 0, 0, 139, A};
-name_to_color({ mediumblue, A}) -> { 0, 0, 205, A};
-name_to_color({ dodgerblue, A}) -> { 30, 144, 255, A};
-name_to_color({ deepskyblue, A}) -> { 0, 191, 255, A};
-name_to_color({ lightskyblue, A}) -> { 135, 206, 250, A};
-name_to_color({ skyblue, A}) -> { 135, 206, 235, A};
-name_to_color({ lightblue, A}) -> { 173, 216, 230, A};
-name_to_color({ powderblue, A}) -> { 176, 224, 230, A};
-name_to_color({ azure, A}) -> { 240, 255, 255, A};
-name_to_color({ lightcyan, A}) -> { 224, 255, 255, A};
-name_to_color({ paleturquoise, A}) -> { 175, 238, 238, A};
-name_to_color({ mediumturquoise, A}) -> { 72, 209, 204, A};
-name_to_color({ lightseagreen, A}) -> { 32, 178, 170, A};
-name_to_color({ darkcyan, A}) -> { 0, 139, 139, A};
-name_to_color({ cadetblue, A}) -> { 95, 158, 160, A};
-name_to_color({ darkturquoise, A}) -> { 0, 206, 209, A};
-name_to_color({ cyan, A}) -> { 0, 255, 255, A};
-name_to_color({ turquoise, A}) -> { 64, 224, 208, A};
-name_to_color({ aquamarine, A}) -> { 127, 255, 212, A};
-name_to_color({ mediumaquamarine, A}) -> { 102, 205, 170, A};
-name_to_color({ darkseagreen, A}) -> { 143, 188, 143, A};
-name_to_color({ mediumseagreen, A}) -> { 60, 179, 113, A};
-name_to_color({ seagreen, A}) -> { 46, 139, 87, A};
-name_to_color({ darkgreen, A}) -> { 0, 100, 0, A};
-name_to_color({ forestgreen, A}) -> { 34, 139, 34, A};
-name_to_color({ limegreen, A}) -> { 50, 205, 50, A};
-name_to_color({ chartreuse, A}) -> { 127, 255, 0, A};
-name_to_color({ lawngreen, A}) -> { 124, 252, 0, A};
-name_to_color({ greenyellow, A}) -> { 173, 255, 47, A};
-name_to_color({ yellowgreen, A}) -> { 154, 205, 50, A};
-name_to_color({ palegreen, A}) -> { 152, 251, 152, A};
-name_to_color({ lightgreen, A}) -> { 144, 238, 144, A};
-name_to_color({ springgreen, A}) -> { 0, 255, 127, A};
-name_to_color({ mediumspringgreen, A}) -> { 0, 250, 154, A};
-name_to_color({ darkolivegreen, A}) -> { 85, 107, 47, A};
-name_to_color({ olivedrab, A}) -> { 107, 142, 35, A};
-name_to_color({ darkkhaki, A}) -> { 189, 183, 107, A};
-name_to_color({ darkgoldenrod, A}) -> { 184, 134, 11, A};
-name_to_color({ goldenrod, A}) -> { 218, 165, 32, A};
-name_to_color({ gold, A}) -> { 255, 215, 0, A};
-name_to_color({ khaki, A}) -> { 240, 230, 140, A};
-name_to_color({ palegoldenrod, A}) -> { 238, 232, 170, A};
-name_to_color({ blanchedalmond, A}) -> { 255, 235, 205, A};
-name_to_color({ moccasin, A}) -> { 255, 228, 181, A};
-name_to_color({ wheat, A}) -> { 245, 222, 179, A};
-name_to_color({ navajowhite, A}) -> { 255, 222, 173, A};
-name_to_color({ burlywood, A}) -> { 222, 184, 135, A};
-name_to_color({ tan, A}) -> { 210, 180, 140, A};
-name_to_color({ rosybrown, A}) -> { 188, 143, 143, A};
-name_to_color({ sienna, A}) -> { 160, 82, 45, A};
-name_to_color({ saddlebrown, A}) -> { 139, 69, 19, A};
-name_to_color({ chocolate, A}) -> { 210, 105, 30, A};
-name_to_color({ peru, A}) -> { 205, 133, 63, A};
-name_to_color({ sandybrown, A}) -> { 244, 164, 96, A};
-name_to_color({ darkred, A}) -> { 139, 0, 0, A};
-name_to_color({ brown, A}) -> { 165, 42, 42, A};
-name_to_color({ firebrick, A}) -> { 178, 34, 34, A};
-name_to_color({ indianred, A}) -> { 205, 92, 92, A};
-name_to_color({ lightcoral, A}) -> { 240, 128, 128, A};
-name_to_color({ salmon, A}) -> { 250, 128, 114, A};
-name_to_color({ darksalmon, A}) -> { 233, 150, 122, A};
-name_to_color({ lightsalmon, A}) -> { 255, 160, 122, A};
-name_to_color({ coral, A}) -> { 255, 127, 80, A};
-name_to_color({ tomato, A}) -> { 255, 99, 71, A};
-name_to_color({ darkorange, A}) -> { 255, 140, 0, A};
-name_to_color({ orange, A}) -> { 255, 165, 0, A};
-name_to_color({ orangered, A}) -> { 255, 69, 0, A};
-name_to_color({ crimson, A}) -> { 220, 20, 60, A};
-name_to_color({ deeppink, A}) -> { 255, 20, 147, A};
-name_to_color({ fuchsia, A}) -> { 255, 0, 255, A};
-name_to_color({ magenta, A}) -> { 255, 0, 255, A};
-name_to_color({ hotpink, A}) -> { 255, 105, 180, A};
-name_to_color({ lightpink, A}) -> { 255, 182, 193, A};
-name_to_color({ pink, A}) -> { 255, 192, 203, A};
-name_to_color({ palevioletred, A}) -> { 219, 112, 147, A};
-name_to_color({ mediumvioletred, A}) -> { 199, 21, 133, A};
-name_to_color({ darkmagenta, A}) -> { 139, 0, 139, A};
-name_to_color({ mediumpurple, A}) -> { 147, 112, 219, A};
-name_to_color({ blueviolet, A}) -> { 138, 43, 226, A};
-name_to_color({ indigo, A}) -> { 75, 0, 130, A};
-name_to_color({ darkviolet, A}) -> { 148, 0, 211, A};
-name_to_color({ darkorchid, A}) -> { 153, 50, 204, A};
-name_to_color({ mediumorchid, A}) -> { 186, 85, 211, A};
-name_to_color({ orchid, A}) -> { 218, 112, 214, A};
-name_to_color({ violet, A}) -> { 238, 130, 238, A};
-name_to_color({ plum, A}) -> { 221, 160, 221, A};
-name_to_color({ thistle, A}) -> { 216, 191, 216, A};
-name_to_color({ lavender, A}) -> { 230, 230, 250, A};
-name_to_color({ ghostwhite, A}) -> { 248, 248, 255, A};
-name_to_color({ aliceblue, A}) -> { 240, 248, 255, A};
-name_to_color({ mintcream, A}) -> { 245, 255, 250, A};
-name_to_color({ honeydew, A}) -> { 240, 255, 240, A};
-name_to_color({ lightgoldenrodyellow, A}) -> { 250, 250, 210, A};
-name_to_color({ lemonchiffon, A}) -> { 255, 250, 205, A};
-name_to_color({ cornsilk, A}) -> { 255, 248, 220, A};
-name_to_color({ lightyellow, A}) -> { 255, 255, 224, A};
-name_to_color({ ivory, A}) -> { 255, 255, 240, A};
-name_to_color({ floralwhite, A}) -> { 255, 250, 240, A};
-name_to_color({ linen, A}) -> { 250, 240, 230, A};
-name_to_color({ oldlace, A}) -> { 253, 245, 230, A};
-name_to_color({ antiquewhite, A}) -> { 250, 235, 215, A};
-name_to_color({ bisque, A}) -> { 255, 228, 196, A};
-name_to_color({ peachpuff, A}) -> { 255, 218, 185, A};
-name_to_color({ papayawhip, A}) -> { 255, 239, 213, A};
-name_to_color({ beige, A}) -> { 245, 245, 220, A};
-name_to_color({ seashell, A}) -> { 255, 245, 238, A};
-name_to_color({ lavenderblush, A}) -> { 255, 240, 245, A};
-name_to_color({ mistyrose, A}) -> { 255, 228, 225, A};
-name_to_color({ snow, A}) -> { 255, 250, 250, A};
-name_to_color({ whitesmoke, A}) -> { 245, 245, 245, A};
-name_to_color({ gainsboro, A}) -> { 220, 220, 220, A};
-name_to_color({ lightgrey, A}) -> { 211, 211, 211, A};
-name_to_color({ darkgray, A}) -> { 169, 169, 169, A};
-name_to_color({ lightslategray, A}) -> { 119, 136, 153, A};
-name_to_color({ slategray, A}) -> { 112, 128, 144, A};
-name_to_color({ dimgray, A}) -> { 105, 105, 105, A};
-name_to_color({ darkslategray, A}) -> { 47, 79, 79, A}.
-
-text(I, {Xs,Ys} = Sp, Font, Text, Color) ->
- {FW,FH} = egd_font:size(Font),
- Length = length(Text),
- Ep = {Xs + Length*FW, Ys + FH + 5},
- I#image{objects = [
- #image_object{
- type = text_horizontal,
- points = [Sp],
- span = span([Sp,Ep]),
- internals = {Font, Text},
- color = Color} | I#image.objects]}.
+name_to_color(Color, A) ->
+ case Color of
+ %% HTML default colors
+ black -> { 0, 0, 0, A};
+ silver -> {192, 192, 192, A};
+ gray -> {128, 128, 128, A};
+ white -> {128, 0, 0, A};
+ maroon -> {255, 0, 0, A};
+ red -> {128, 0, 128, A};
+ purple -> {128, 0, 128, A};
+ fuchia -> {255, 0, 255, A};
+ green -> { 0, 128, 0, A};
+ lime -> { 0, 255, 0, A};
+ olive -> {128, 128, 0, A};
+ yellow -> {255, 255, 0, A};
+ navy -> { 0, 0, 128, A};
+ blue -> { 0, 0, 255, A};
+ teal -> { 0, 128, 0, A};
+ aqua -> { 0, 255, 155, A};
+
+ %% HTML color extensions
+ steelblue -> { 70, 130, 180, A};
+ royalblue -> { 4, 22, 144, A};
+ cornflowerblue -> {100, 149, 237, A};
+ lightsteelblue -> {176, 196, 222, A};
+ mediumslateblue -> {123, 104, 238, A};
+ slateblue -> {106, 90, 205, A};
+ darkslateblue -> { 72, 61, 139, A};
+ midnightblue -> { 25, 25, 112, A};
+ darkblue -> { 0, 0, 139, A};
+ mediumblue -> { 0, 0, 205, A};
+ dodgerblue -> { 30, 144, 255, A};
+ deepskyblue -> { 0, 191, 255, A};
+ lightskyblue -> {135, 206, 250, A};
+ skyblue -> {135, 206, 235, A};
+ lightblue -> {173, 216, 230, A};
+ powderblue -> {176, 224, 230, A};
+ azure -> {240, 255, 255, A};
+ lightcyan -> {224, 255, 255, A};
+ paleturquoise -> {175, 238, 238, A};
+ mediumturquoise -> { 72, 209, 204, A};
+ lightseagreen -> { 32, 178, 170, A};
+ darkcyan -> { 0, 139, 139, A};
+ cadetblue -> { 95, 158, 160, A};
+ darkturquoise -> { 0, 206, 209, A};
+ cyan -> { 0, 255, 255, A};
+ turquoise -> { 64, 224, 208, A};
+ aquamarine -> {127, 255, 212, A};
+ mediumaquamarine -> {102, 205, 170, A};
+ darkseagreen -> {143, 188, 143, A};
+ mediumseagreen -> { 60, 179, 113, A};
+ seagreen -> { 46, 139, 87, A};
+ darkgreen -> { 0, 100, 0, A};
+ forestgreen -> { 34, 139, 34, A};
+ limegreen -> { 50, 205, 50, A};
+ chartreuse -> {127, 255, 0, A};
+ lawngreen -> {124, 252, 0, A};
+ greenyellow -> {173, 255, 47, A};
+ yellowgreen -> {154, 205, 50, A};
+ palegreen -> {152, 251, 152, A};
+ lightgreen -> {144, 238, 144, A};
+ springgreen -> { 0, 255, 127, A};
+ darkolivegreen -> { 85, 107, 47, A};
+ olivedrab -> {107, 142, 35, A};
+ darkkhaki -> {189, 183, 107, A};
+ darkgoldenrod -> {184, 134, 11, A};
+ goldenrod -> {218, 165, 32, A};
+ gold -> {255, 215, 0, A};
+ khaki -> {240, 230, 140, A};
+ palegoldenrod -> {238, 232, 170, A};
+ blanchedalmond -> {255, 235, 205, A};
+ moccasin -> {255, 228, 181, A};
+ wheat -> {245, 222, 179, A};
+ navajowhite -> {255, 222, 173, A};
+ burlywood -> {222, 184, 135, A};
+ tan -> {210, 180, 140, A};
+ rosybrown -> {188, 143, 143, A};
+ sienna -> {160, 82, 45, A};
+ saddlebrown -> {139, 69, 19, A};
+ chocolate -> {210, 105, 30, A};
+ peru -> {205, 133, 63, A};
+ sandybrown -> {244, 164, 96, A};
+ darkred -> {139, 0, 0, A};
+ brown -> {165, 42, 42, A};
+ firebrick -> {178, 34, 34, A};
+ indianred -> {205, 92, 92, A};
+ lightcoral -> {240, 128, 128, A};
+ salmon -> {250, 128, 114, A};
+ darksalmon -> {233, 150, 122, A};
+ lightsalmon -> {255, 160, 122, A};
+ coral -> {255, 127, 80, A};
+ tomato -> {255, 99, 71, A};
+ darkorange -> {255, 140, 0, A};
+ orange -> {255, 165, 0, A};
+ orangered -> {255, 69, 0, A};
+ crimson -> {220, 20, 60, A};
+ deeppink -> {255, 20, 147, A};
+ fuchsia -> {255, 0, 255, A};
+ magenta -> {255, 0, 255, A};
+ hotpink -> {255, 105, 180, A};
+ lightpink -> {255, 182, 193, A};
+ pink -> {255, 192, 203, A};
+ palevioletred -> {219, 112, 147, A};
+ mediumvioletred -> {199, 21, 133, A};
+ darkmagenta -> {139, 0, 139, A};
+ mediumpurple -> {147, 112, 219, A};
+ blueviolet -> {138, 43, 226, A};
+ indigo -> { 75, 0, 130, A};
+ darkviolet -> {148, 0, 211, A};
+ darkorchid -> {153, 50, 204, A};
+ mediumorchid -> {186, 85, 211, A};
+ orchid -> {218, 112, 214, A};
+ violet -> {238, 130, 238, A};
+ plum -> {221, 160, 221, A};
+ thistle -> {216, 191, 216, A};
+ lavender -> {230, 230, 250, A};
+ ghostwhite -> {248, 248, 255, A};
+ aliceblue -> {240, 248, 255, A};
+ mintcream -> {245, 255, 250, A};
+ honeydew -> {240, 255, 240, A};
+ lemonchiffon -> {255, 250, 205, A};
+ cornsilk -> {255, 248, 220, A};
+ lightyellow -> {255, 255, 224, A};
+ ivory -> {255, 255, 240, A};
+ floralwhite -> {255, 250, 240, A};
+ linen -> {250, 240, 230, A};
+ oldlace -> {253, 245, 230, A};
+ antiquewhite -> {250, 235, 215, A};
+ bisque -> {255, 228, 196, A};
+ peachpuff -> {255, 218, 185, A};
+ papayawhip -> {255, 239, 213, A};
+ beige -> {245, 245, 220, A};
+ seashell -> {255, 245, 238, A};
+ lavenderblush -> {255, 240, 245, A};
+ mistyrose -> {255, 228, 225, A};
+ snow -> {255, 250, 250, A};
+ whitesmoke -> {245, 245, 245, A};
+ gainsboro -> {220, 220, 220, A};
+ lightgrey -> {211, 211, 211, A};
+ darkgray -> {169, 169, 169, A};
+ lightslategray -> {119, 136, 153, A};
+ slategray -> {112, 128, 144, A};
+ dimgray -> {105, 105, 105, A};
+ darkslategray -> { 47, 79, 79, A};
+ mediumspringgreen -> { 0, 250, 154, A};
+ lightgoldenrodyellow -> {250, 250, 210, A}
+ end.
%%% Generic transformations
@@ -411,15 +393,17 @@ point_side(_) -> on_line.
%% AUX
-span(Points) ->
- Xs = [TX||{TX, _} <- Points],
- Ys = [TY||{_, TY} <- Points],
- Xmin = lists:min(Xs),
- Xmax = lists:max(Xs),
- Ymin = lists:min(Ys),
- Ymax = lists:max(Ys),
+span([{X0,Y0}|Points]) ->
+ span(Points,X0,Y0,X0,Y0).
+span([{X0,Y0}|Points],Xmin,Ymin,Xmax,Ymax) ->
+ span(Points,erlang:min(Xmin,X0),
+ erlang:min(Ymin,Y0),
+ erlang:max(Xmax,X0),
+ erlang:max(Ymax,Y0));
+span([],Xmin,Ymin,Xmax,Ymax) ->
{Xmin,Ymin,Xmax,Ymax}.
+
rgb_float2byte({R,G,B}) -> rgb_float2byte({R,G,B,1.0});
rgb_float2byte({R,G,B,A}) ->
{trunc(R*255), trunc(G*255), trunc(B*255), trunc(A*255)}.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 11:51:19 +0000