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Add utility function for string to rgba color conversion.

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This commit is contained in:
kovacsv 2023-01-21 22:54:31 +01:00
parent 747ed18d20
commit b9fe936047
3 changed files with 32 additions and 2 deletions
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3
source/engine/main.js
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@ -44,7 +44,7 @@ import { ArrayBufferToUtf8String, ArrayBufferToAsciiString, AsciiStringToArrayBu
import { SetExternalLibLocation, GetExternalLibPath, LoadExternalLibrary } from './io/externallibs.js';
import { GetFileName, GetFileExtension, RequestUrl, ReadFile, TransformFileHostUrls, IsUrl, FileSource, FileFormat } from './io/fileutils.js';
import { TextWriter } from './io/textwriter.js';
import { RGBColor, RGBAColor, ColorComponentFromFloat, ColorComponentToFloat, RGBColorFromFloatComponents, SRGBToLinear, LinearToSRGB, IntegerToHexString, RGBColorToHexString, RGBAColorToHexString, HexStringToRGBColor, ArrayToRGBColor, RGBColorIsEqual } from './model/color.js';
import { RGBColor, RGBAColor, ColorComponentFromFloat, ColorComponentToFloat, RGBColorFromFloatComponents, SRGBToLinear, LinearToSRGB, IntegerToHexString, RGBColorToHexString, RGBAColorToHexString, HexStringToRGBColor, HexStringToRGBAColor, ArrayToRGBColor, RGBColorIsEqual } from './model/color.js';
import { GeneratorParams, Generator, GeneratorHelper, GenerateCuboid, GenerateCone, GenerateCylinder, GenerateSphere, GeneratePlatonicSolid } from './model/generator.js';
import { TextureMap, MaterialBase, FaceMaterial, PhongMaterial, PhysicalMaterial, TextureMapIsEqual, TextureIsEqual, MaterialType } from './model/material.js';
import { Mesh } from './model/mesh.js';
@ -213,6 +213,7 @@ export {
RGBColorToHexString,
RGBAColorToHexString,
HexStringToRGBColor,
HexStringToRGBAColor,
ArrayToRGBColor,
RGBColorIsEqual,
GeneratorParams,

16
source/engine/model/color.js
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@ -157,6 +157,22 @@ export function HexStringToRGBColor (hexString)
return new RGBColor (r, g, b);
}
export function HexStringToRGBAColor (hexString)
{
if (hexString.length !== 6 && hexString.length !== 8) {
return null;
}
let r = parseInt (hexString.substring (0, 2), 16);
let g = parseInt (hexString.substring (2, 4), 16);
let b = parseInt (hexString.substring (4, 6), 16);
let a = 255;
if (hexString.length === 8) {
a = parseInt (hexString.substring (6, 8), 16);
}
return new RGBAColor (r, g, b, a);
}
export function ArrayToRGBColor (arr)
{
return new RGBColor (arr[0], arr[1], arr[2]);

15
test/tests/model_test.js
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@ -229,12 +229,25 @@ describe ('Color Conversion', function () {
assert.ok (!OV.RGBColorIsEqual (new OV.RGBColor (10, 20, 30), new OV.RGBColor (10, 20, 31)));
});
it ('Color hex string conversion', function () {
it ('RGB Color hex string conversion', function () {
let color = new OV.RGBColor (10, 20, 30);
let hexString = '0a141e';
assert.strictEqual (OV.RGBColorToHexString (color), hexString);
assert.deepStrictEqual (OV.HexStringToRGBColor (hexString), color);
});
it ('RGBA Color hex string conversion', function () {
let color = new OV.RGBAColor (10, 20, 30, 40);
let hexString = '0a141e28';
assert.strictEqual (OV.RGBAColorToHexString (color), hexString);
assert.deepStrictEqual (OV.HexStringToRGBAColor (hexString), color);
let color2 = new OV.RGBAColor (10, 20, 30, 255);
let hexString2 = '0a141e';
let hexString2a = '0a141eff';
assert.strictEqual (OV.RGBAColorToHexString (color2), hexString2a);
assert.deepStrictEqual (OV.HexStringToRGBAColor (hexString2), color2);
});
});
describe ('Node Hierarchy', function () {