OsSetPenColor
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− | + | {{osslfunc | |
+ | |threat_level=ignored | ||
+ | |permissions=true | ||
+ | |delay=0 | ||
+ | |additional_info=This function was added in 0.7.2-post-fixes; Variants with vector and alpha arguments added in 0.9.3.0 | ||
+ | |function_syntax=string osSetPenColor(string drawList, string color)<br> | ||
+ | string osSetPenColor(string drawList, vector color)<br> | ||
+ | string osSetPenColor(string drawList, vector color, float alpha) | ||
+ | |ossl_example=<source lang="lsl"> | ||
+ | // Example of osSetPenColor | ||
+ | |||
+ | string hexDigits = "0123456789abcdef"; | ||
+ | list colorNames = [ | ||
+ | "AliceBlue", "AntiqueWhite", "Aqua", "Aquamarine", "Azure", "Beige", "Bisque", | ||
+ | "Black", "BlanchedAlmond", "Blue", "BlueViolet", "Brown", "BurlyWood", | ||
+ | "CadetBlue", "Chartreuse", "Chocolate", "Coral", "CornflowerBlue", "Cornsilk", | ||
+ | "Crimson", "Cyan", "DarkBlue", "DarkCyan", "DarkGoldenrod", "DarkGrey", | ||
+ | "DarkGreen", "DarkKhaki", "DarkMagenta", "DarkOliveGreen", "DarkOrange", | ||
+ | "DarkOrchid", "DarkRed", "DarkSalmon", "DarkSeaGreen", "DarkSlateBlue", | ||
+ | "DarkSlateGrey", "DarkTurquoise", "DarkViolet", "DeepPink", "DeepSkyBlue", | ||
+ | "DimGrey", "DodgerBlue", "FireBrick", "FloralWhite", "ForestGreen", "Fuchsia", | ||
+ | "Gainsboro", "GhostWhite", "Gold", "Goldenrod", "Grey", "Green", "GreenYellow", | ||
+ | "Honeydew", "HotPink", "IndianRed", "Indigo", "Ivory", "Khaki", "Lavender", | ||
+ | "LavenderBlush", "LawnGreen", "LemonChiffon", "LightBlue", "LightCoral", | ||
+ | "LightCyan", "LightGoldenrodYellow", "LightGreen", "LightGrey", "LightPink", | ||
+ | "LightSalmon", "LightSeaGreen", "LightSkyBlue", "LightSlateGrey", | ||
+ | "LightSteelBlue", "LightYellow", "Lime", "LimeGreen", "Linen", "Magenta", | ||
+ | "Maroon", "MediumAquamarine", "MediumBlue", "MediumOrchid", "MediumPurple", | ||
+ | "MediumSeaGreen", "MediumSlateBlue", "MediumSpringGreen", "MediumTurquoise", | ||
+ | "MediumVioletRed", "MidnightBlue", "MintCream", "MistyRose", "Moccasin", | ||
+ | "NavajoWhite", "Navy", "OldLace", "Olive", "OliveDrab", "Orange", "OrangeRed", | ||
+ | "Orchid", "PaleGoldenrod", "PaleGreen", "PaleTurquoise", "PaleVioletRed", | ||
+ | "PapayaWhip", "PeachPuff", "Peru", "Pink", "Plum", "PowderBlue", "Purple", | ||
+ | "Red", "RosyBrown", "RoyalBlue", "SaddleBrown", "Salmon", "SandyBrown", | ||
+ | "SeaGreen", "Seashell", "Sienna", "Silver", "SkyBlue", "SlateBlue", "SlateGrey", | ||
+ | "Snow", "SpringGreen", "SteelBlue", "Tan", "Teal", "Thistle", "Tomato", | ||
+ | "Turquoise", "Violet", "Wheat", "White", "WhiteSmoke", "Yellow", "YellowGreen" | ||
+ | ]; | ||
+ | default | ||
+ | { | ||
+ | state_entry() | ||
+ | { | ||
+ | // Storage for our drawing commands | ||
+ | string CommandList = ""; | ||
+ | integer i; | ||
+ | // Set the pen width to 1 pixel | ||
+ | CommandList = osSetPenSize(CommandList, 1); | ||
− | + | // draw each named color as a single horizontal line | |
+ | for (i = 0; i < 140; ++i) | ||
+ | { | ||
+ | // Set the pen to the next color name in our list | ||
+ | CommandList = osSetPenColor(CommandList, llList2String( colorNames, i)); | ||
+ | // Now draw a line in that color | ||
+ | CommandList = osDrawLine(CommandList, 0, i, 255, i); | ||
+ | } | ||
− | + | // Now let's fill up the remainder with lines of random colors, leaving a gap of 20 lines. | |
+ | for (i = 161; i < 256; ++i) | ||
+ | { | ||
+ | // give it an opaque alpha | ||
+ | string thisColor = "ff"; | ||
+ | integer j; | ||
− | + | // then choose six random hex digits for the color | |
+ | for (j = 0; j < 6; ++j) | ||
+ | { | ||
+ | integer k = (integer)llFrand(16.0); | ||
+ | thisColor += llGetSubString(hexDigits, k, k); | ||
+ | } | ||
+ | CommandList = osSetPenColor(CommandList, thisColor); | ||
+ | CommandList = osDrawLine(CommandList, 0, i, 255, i); | ||
+ | } | ||
+ | // Now generate the texture and apply it to the prim | ||
+ | osSetDynamicTextureData("", "vector", CommandList, "width:256,height:256", 0); | ||
+ | } | ||
+ | } | ||
+ | </source> | ||
− | + | <source lang="lsl"> | |
+ | // Generating a calibrated color checker | ||
+ | |||
+ | integer SIZE = 512; | ||
+ | integer NROWS = 4; | ||
+ | integer NCOLS = 6; | ||
+ | integer MARGIN = 6; | ||
+ | |||
+ | // Color definitions in xyY space | ||
+ | // https://home.cis.rit.edu/~cnspci/references/mccamy1976.pdf | ||
− | + | list xyYColors = [ | |
+ | <0.400, 0.350, 10.1>, | ||
+ | <0.377, 0.345, 35.8>, | ||
+ | <0.247, 0.251, 19.3>, | ||
+ | <0.337, 0.422, 13.3>, | ||
+ | <0.265, 0.240, 24.3>, | ||
+ | <0.261, 0.343, 43.1>, | ||
+ | <0.506, 0.407, 30.1>, | ||
+ | <0.211, 0.175, 12.0>, | ||
+ | <0.453, 0.306, 19.8>, | ||
+ | <0.285, 0.202, 6.60>, | ||
+ | <0.380, 0.489, 44.3>, | ||
+ | <0.473, 0.438, 43.1>, | ||
+ | <0.187, 0.129, 06.1>, | ||
+ | <0.305, 0.478, 23.4>, | ||
+ | <0.539, 0.313, 12.0>, | ||
+ | <0.448, 0.470, 59.1>, | ||
+ | <0.364, 0.233, 19.8>, | ||
+ | <0.196, 0.252, 19.8>, | ||
+ | <0.310, 0.316, 90.0>, | ||
+ | <0.310, 0.316, 59.1>, | ||
+ | <0.310, 0.316, 36.2>, | ||
+ | <0.310, 0.316, 19.8>, | ||
+ | <0.310, 0.316, 09.0>, | ||
+ | <0.310, 0.316, 03.1> | ||
+ | ]; | ||
+ | |||
+ | vector CIExyY_to_CIEXYZ (vector xyY) | ||
+ | { | ||
+ | return | ||
+ | < | ||
+ | xyY.x * xyY.z / xyY.y, | ||
+ | xyY.z, | ||
+ | (1.0 - xyY.x - xyY.y) * xyY.z / xyY.y | ||
+ | >; | ||
+ | } | ||
+ | |||
+ | vector CIEXYZ_to_RGB709 (vector XYZ) | ||
+ | { | ||
+ | return | ||
+ | < | ||
+ | 3.240479 * XYZ.x - 1.53715 * XYZ.y - 0.498535 * XYZ.z, | ||
+ | -0.969256 * XYZ.x + 1.875991 * XYZ.y + 0.041556 * XYZ.z, | ||
+ | 0.055648 * XYZ.x - 0.204043 * XYZ.y + 1.057311 * XYZ.z | ||
+ | >; | ||
+ | } | ||
+ | |||
+ | drawChart(integer side) | ||
+ | { | ||
+ | string drawList = ""; | ||
+ | drawList = osSetPenColor (drawList, "Black"); | ||
+ | drawList = osMovePen (drawList, 0, 0); | ||
+ | drawList = osDrawFilledRectangle (drawList, SIZE, SIZE); | ||
+ | |||
+ | for (integer row=0; row<NROWS; row++) | ||
+ | for (integer col=0; col<NCOLS; col++) | ||
+ | { | ||
+ | integer colorindex = row*NCOLS + col; | ||
+ | vector xyYColor = llList2Vector (xyYColors,colorindex); | ||
+ | vector XYZColor = CIExyY_to_CIEXYZ (xyYColor); // Convert to XYZ space | ||
+ | vector RGB709 = CIEXYZ_to_RGB709 (XYZColor); // Convert to 'linear' RGB space | ||
+ | RGB709 *= 0.01; // Normalize luminance to ~ 1 | ||
+ | vector sRGB = llLinear2sRGB (RGB709); // Apply sRGB gamma | ||
− | + | // Color space transformations may produce components outside [0..1] | |
− | // | + | // osSetPenColor will take care to clamp the values to this range |
− | + | ||
− | + | integer pos_y = (row * SIZE/NROWS) +MARGIN; | |
− | + | integer pos_x = (col * SIZE/NCOLS) +MARGIN; | |
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+ | integer siz_y = (SIZE/NROWS) - (2*MARGIN); | ||
+ | integer siz_x = (SIZE/NCOLS) - (2*MARGIN); | ||
+ | |||
+ | drawList = osSetPenColor (drawList, sRGB); | ||
+ | drawList = osMovePen (drawList, pos_x, pos_y); | ||
+ | drawList = osDrawFilledRectangle (drawList, siz_x, siz_y); | ||
+ | } | ||
+ | |||
+ | osSetDynamicTextureDataFace ("", "vector", drawList, | ||
+ | "width:" +(string)SIZE | ||
+ | +", height:" +(string)SIZE, | ||
+ | 0, side); | ||
+ | } | ||
+ | |||
default | default | ||
{ | { | ||
− | + | touch_start (integer n) | |
− | + | { | |
− | + | drawChart(1); | |
− | + | } | |
+ | |||
+ | }</source> | ||
− | + | |description= | |
+ | * osSetPenColor(string drawList, string color) Appends a [[Drawing commands#PenColour|PenColor]] drawing command to the string provided in '''drawList''' and returns the result. | ||
− | + | This sets the pen's drawing color to either the specified [http://msdn.microsoft.com/en-us/library/aa358802.aspx named .NET color] [https://docs.microsoft.com/en-us/dotnet/api/system.windows.media.colors?view=windowsdesktop-6.0 named colors] or to a 32-bit color value (formatted as eight hexadecimal digits in the format aarrggbb, representing the eight-bit alpha, red, green and blue channels). | |
− | + | ||
− | + | For full opacity, use an alpha value of FF (e.g. <tt>FFFF0000</tt> for red); for varying degrees of transparency, reduce the alpha value (e.g. <tt>800000FF</tt> for semi-transparent blue). | |
− | + | ||
− | + | The color names and hexadecimal color representations are not case-sensitive.<br> | |
− | + | ||
− | + | * osSetPenColor(string drawList, vector color) converts vector color to the hexadecimal color with a alpha of 1.0 (FF) and appends the drawing command. | |
+ | |||
+ | * osSetPenColor(string drawList, vector color, float alpha) converts vector color and alpha to the hexadecimal color and appends the drawing command. | ||
+ | |||
+ | |||
+ | '''NOTE :''' This function replaces the deprecated [[OsSetPenColour]] function. | ||
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+ | }} |
Latest revision as of 10:22, 5 May 2023
string osSetPenColor(string drawList, string color)
string osSetPenColor(string drawList, vector color) | |
This sets the pen's drawing color to either the specified named .NET color named colors or to a 32-bit color value (formatted as eight hexadecimal digits in the format aarrggbb, representing the eight-bit alpha, red, green and blue channels). For full opacity, use an alpha value of FF (e.g. FFFF0000 for red); for varying degrees of transparency, reduce the alpha value (e.g. 800000FF for semi-transparent blue). The color names and hexadecimal color representations are not case-sensitive.
| |
Threat Level | This function does not do a threat level check |
Permissions | Use of this function is always allowed by default |
Extra Delay | 0 seconds |
Example(s) | |
// Example of osSetPenColor string hexDigits = "0123456789abcdef"; list colorNames = [ "AliceBlue", "AntiqueWhite", "Aqua", "Aquamarine", "Azure", "Beige", "Bisque", "Black", "BlanchedAlmond", "Blue", "BlueViolet", "Brown", "BurlyWood", "CadetBlue", "Chartreuse", "Chocolate", "Coral", "CornflowerBlue", "Cornsilk", "Crimson", "Cyan", "DarkBlue", "DarkCyan", "DarkGoldenrod", "DarkGrey", "DarkGreen", "DarkKhaki", "DarkMagenta", "DarkOliveGreen", "DarkOrange", "DarkOrchid", "DarkRed", "DarkSalmon", "DarkSeaGreen", "DarkSlateBlue", "DarkSlateGrey", "DarkTurquoise", "DarkViolet", "DeepPink", "DeepSkyBlue", "DimGrey", "DodgerBlue", "FireBrick", "FloralWhite", "ForestGreen", "Fuchsia", "Gainsboro", "GhostWhite", "Gold", "Goldenrod", "Grey", "Green", "GreenYellow", "Honeydew", "HotPink", "IndianRed", "Indigo", "Ivory", "Khaki", "Lavender", "LavenderBlush", "LawnGreen", "LemonChiffon", "LightBlue", "LightCoral", "LightCyan", "LightGoldenrodYellow", "LightGreen", "LightGrey", "LightPink", "LightSalmon", "LightSeaGreen", "LightSkyBlue", "LightSlateGrey", "LightSteelBlue", "LightYellow", "Lime", "LimeGreen", "Linen", "Magenta", "Maroon", "MediumAquamarine", "MediumBlue", "MediumOrchid", "MediumPurple", "MediumSeaGreen", "MediumSlateBlue", "MediumSpringGreen", "MediumTurquoise", "MediumVioletRed", "MidnightBlue", "MintCream", "MistyRose", "Moccasin", "NavajoWhite", "Navy", "OldLace", "Olive", "OliveDrab", "Orange", "OrangeRed", "Orchid", "PaleGoldenrod", "PaleGreen", "PaleTurquoise", "PaleVioletRed", "PapayaWhip", "PeachPuff", "Peru", "Pink", "Plum", "PowderBlue", "Purple", "Red", "RosyBrown", "RoyalBlue", "SaddleBrown", "Salmon", "SandyBrown", "SeaGreen", "Seashell", "Sienna", "Silver", "SkyBlue", "SlateBlue", "SlateGrey", "Snow", "SpringGreen", "SteelBlue", "Tan", "Teal", "Thistle", "Tomato", "Turquoise", "Violet", "Wheat", "White", "WhiteSmoke", "Yellow", "YellowGreen" ]; default { state_entry() { // Storage for our drawing commands string CommandList = ""; integer i; // Set the pen width to 1 pixel CommandList = osSetPenSize(CommandList, 1); // draw each named color as a single horizontal line for (i = 0; i < 140; ++i) { // Set the pen to the next color name in our list CommandList = osSetPenColor(CommandList, llList2String( colorNames, i)); // Now draw a line in that color CommandList = osDrawLine(CommandList, 0, i, 255, i); } // Now let's fill up the remainder with lines of random colors, leaving a gap of 20 lines. for (i = 161; i < 256; ++i) { // give it an opaque alpha string thisColor = "ff"; integer j; // then choose six random hex digits for the color for (j = 0; j < 6; ++j) { integer k = (integer)llFrand(16.0); thisColor += llGetSubString(hexDigits, k, k); } CommandList = osSetPenColor(CommandList, thisColor); CommandList = osDrawLine(CommandList, 0, i, 255, i); } // Now generate the texture and apply it to the prim osSetDynamicTextureData("", "vector", CommandList, "width:256,height:256", 0); } } // Generating a calibrated color checker integer SIZE = 512; integer NROWS = 4; integer NCOLS = 6; integer MARGIN = 6; // Color definitions in xyY space // https://home.cis.rit.edu/~cnspci/references/mccamy1976.pdf list xyYColors = [ <0.400, 0.350, 10.1>, <0.377, 0.345, 35.8>, <0.247, 0.251, 19.3>, <0.337, 0.422, 13.3>, <0.265, 0.240, 24.3>, <0.261, 0.343, 43.1>, <0.506, 0.407, 30.1>, <0.211, 0.175, 12.0>, <0.453, 0.306, 19.8>, <0.285, 0.202, 6.60>, <0.380, 0.489, 44.3>, <0.473, 0.438, 43.1>, <0.187, 0.129, 06.1>, <0.305, 0.478, 23.4>, <0.539, 0.313, 12.0>, <0.448, 0.470, 59.1>, <0.364, 0.233, 19.8>, <0.196, 0.252, 19.8>, <0.310, 0.316, 90.0>, <0.310, 0.316, 59.1>, <0.310, 0.316, 36.2>, <0.310, 0.316, 19.8>, <0.310, 0.316, 09.0>, <0.310, 0.316, 03.1> ]; vector CIExyY_to_CIEXYZ (vector xyY) { return < xyY.x * xyY.z / xyY.y, xyY.z, (1.0 - xyY.x - xyY.y) * xyY.z / xyY.y >; } vector CIEXYZ_to_RGB709 (vector XYZ) { return < 3.240479 * XYZ.x - 1.53715 * XYZ.y - 0.498535 * XYZ.z, -0.969256 * XYZ.x + 1.875991 * XYZ.y + 0.041556 * XYZ.z, 0.055648 * XYZ.x - 0.204043 * XYZ.y + 1.057311 * XYZ.z >; } drawChart(integer side) { string drawList = ""; drawList = osSetPenColor (drawList, "Black"); drawList = osMovePen (drawList, 0, 0); drawList = osDrawFilledRectangle (drawList, SIZE, SIZE); for (integer row=0; row<NROWS; row++) for (integer col=0; col<NCOLS; col++) { integer colorindex = row*NCOLS + col; vector xyYColor = llList2Vector (xyYColors,colorindex); vector XYZColor = CIExyY_to_CIEXYZ (xyYColor); // Convert to XYZ space vector RGB709 = CIEXYZ_to_RGB709 (XYZColor); // Convert to 'linear' RGB space RGB709 *= 0.01; // Normalize luminance to ~ 1 vector sRGB = llLinear2sRGB (RGB709); // Apply sRGB gamma // Color space transformations may produce components outside [0..1] // osSetPenColor will take care to clamp the values to this range integer pos_y = (row * SIZE/NROWS) +MARGIN; integer pos_x = (col * SIZE/NCOLS) +MARGIN; integer siz_y = (SIZE/NROWS) - (2*MARGIN); integer siz_x = (SIZE/NCOLS) - (2*MARGIN); drawList = osSetPenColor (drawList, sRGB); drawList = osMovePen (drawList, pos_x, pos_y); drawList = osDrawFilledRectangle (drawList, siz_x, siz_y); } osSetDynamicTextureDataFace ("", "vector", drawList, "width:" +(string)SIZE +", height:" +(string)SIZE, 0, side); } default { touch_start (integer n) { drawChart(1); } } | |
Notes | |
This function was added in 0.7.2-post-fixes; Variants with vector and alpha arguments added in 0.9.3.0 |