sigma
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A JavaScript library dedicated to graph drawing.
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JavaScript
;
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
if (typeof b !== "function" && b !== null)
throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var utils_1 = require("../../../utils");
var edge_fast_vert_glsl_1 = __importDefault(require("../shaders/edge.fast.vert.glsl.js"));
var edge_fast_frag_glsl_1 = __importDefault(require("../shaders/edge.fast.frag.glsl.js"));
var edge_1 = require("./common/edge");
var POINTS = 2, ATTRIBUTES = 3;
var EdgeFastProgram = /** @class */ (function (_super) {
__extends(EdgeFastProgram, _super);
function EdgeFastProgram(gl) {
var _this = _super.call(this, gl, edge_fast_vert_glsl_1.default, edge_fast_frag_glsl_1.default, POINTS, ATTRIBUTES) || this;
// Locations:
_this.positionLocation = gl.getAttribLocation(_this.program, "a_position");
_this.colorLocation = gl.getAttribLocation(_this.program, "a_color");
// Uniform locations:
var matrixLocation = gl.getUniformLocation(_this.program, "u_matrix");
if (matrixLocation === null)
throw new Error("EdgeFastProgram: error while getting matrixLocation");
_this.matrixLocation = matrixLocation;
var resolutionLocation = gl.getUniformLocation(_this.program, "u_resolution");
if (resolutionLocation === null)
throw new Error("EdgeFastProgram: error while getting resolutionLocation");
_this.resolutionLocation = resolutionLocation;
_this.bind();
return _this;
}
EdgeFastProgram.prototype.bind = function () {
var gl = this.gl;
// Bindings
gl.enableVertexAttribArray(this.positionLocation);
gl.enableVertexAttribArray(this.colorLocation);
gl.vertexAttribPointer(this.positionLocation, 2, gl.FLOAT, false, this.attributes * Float32Array.BYTES_PER_ELEMENT, 0);
gl.vertexAttribPointer(this.colorLocation, 1, gl.FLOAT, false, this.attributes * Float32Array.BYTES_PER_ELEMENT, 8);
};
EdgeFastProgram.prototype.computeIndices = function () {
//nothing to do
};
EdgeFastProgram.prototype.process = function (sourceData, targetData, data, hidden, offset) {
var array = this.array;
var i = 0;
if (hidden) {
for (var l = i + POINTS * ATTRIBUTES; i < l; i++)
array[i] = 0;
}
var x1 = sourceData.x, y1 = sourceData.y, x2 = targetData.x, y2 = targetData.y, color = utils_1.floatColor(data.color);
i = POINTS * ATTRIBUTES * offset;
// First point
array[i++] = x1;
array[i++] = y1;
array[i++] = color;
// Second point
array[i++] = x2;
array[i++] = y2;
array[i] = color;
};
EdgeFastProgram.prototype.render = function (params) {
var gl = this.gl;
var program = this.program;
gl.useProgram(program);
gl.uniform2f(this.resolutionLocation, params.width, params.height);
gl.uniformMatrix3fv(this.matrixLocation, false, params.matrix);
gl.drawArrays(gl.LINES, 0, this.array.length / ATTRIBUTES);
};
return EdgeFastProgram;
}(edge_1.AbstractEdgeProgram));
exports.default = EdgeFastProgram;