bytev-charts
Version:
基于echarts和JavaScript及ES6封装的一个可以直接调用的图表组件库，内置主题设计，简单快捷，且支持用户自定义配置； npm 安装方式: npm install bytev-charts 若启动提示还需额外install插件,则运行 npm install @babel/runtime-corejs2 即可;
390 lines (336 loc) • 12 kB
JavaScript
import "core-js/modules/es.regexp.exec.js";
import "core-js/modules/es.string.split.js";
import "core-js/modules/es.string.trim.js";
import "core-js/modules/es.array.index-of.js";
import "core-js/modules/es.string.repeat.js";
import "core-js/modules/es.array.splice.js";
import "core-js/modules/es.array.join.js";
import _Object$assign from "@babel/runtime-corejs2/core-js/object/assign";
import _Object$create from "@babel/runtime-corejs2/core-js/object/create";
import _parseFloat from "@babel/runtime-corejs2/core-js/parse-float";
console.warn("THREE.MTLLoader: As part of the transition to ES6 Modules, the files in 'examples/js' were deprecated in May 2020 (r117) and will be deleted in December 2020 (r124). You can find more information about developing using ES6 Modules in https://threejs.org/docs/#manual/en/introduction/Installation.");
/**
* Loads a Wavefront .mtl file specifying materials
*/
THREE.MTLLoader = function (manager) {
THREE.Loader.call(this, manager);
};
THREE.MTLLoader.prototype = _Object$assign(_Object$create(THREE.Loader.prototype), {
constructor: THREE.MTLLoader,
/**
* Loads and parses a MTL asset from a URL.
*
* @param {String} url - URL to the MTL file.
* @param {Function} [onLoad] - Callback invoked with the loaded object.
* @param {Function} [onProgress] - Callback for download progress.
* @param {Function} [onError] - Callback for download errors.
*
* @see setPath setResourcePath
*
* @note In order for relative texture references to resolve correctly
* you must call setResourcePath() explicitly prior to load.
*/
load: function load(url, onLoad, onProgress, onError) {
var scope = this;
var path = this.path === '' ? THREE.LoaderUtils.extractUrlBase(url) : this.path;
var loader = new THREE.FileLoader(this.manager);
loader.setPath(this.path);
loader.setRequestHeader(this.requestHeader);
loader.load(url, function (text) {
try {
onLoad(scope.parse(text, path));
} catch (e) {
if (onError) {
onError(e);
} else {
console.error(e);
}
scope.manager.itemError(url);
}
}, onProgress, onError);
},
setMaterialOptions: function setMaterialOptions(value) {
this.materialOptions = value;
return this;
},
/**
* Parses a MTL file.
*
* @param {String} text - Content of MTL file
* @return {THREE.MTLLoader.MaterialCreator}
*
* @see setPath setResourcePath
*
* @note In order for relative texture references to resolve correctly
* you must call setResourcePath() explicitly prior to parse.
*/
parse: function parse(text, path) {
var lines = text.split('\n');
var info = {};
var delimiter_pattern = /\s+/;
var materialsInfo = {};
for (var i = 0; i < lines.length; i++) {
var line = lines[i];
line = line.trim();
if (line.length === 0 || line.charAt(0) === '#') {
// Blank line or comment ignore
continue;
}
var pos = line.indexOf(' ');
var key = pos >= 0 ? line.substring(0, pos) : line;
key = key.toLowerCase();
var value = pos >= 0 ? line.substring(pos + 1) : '';
value = value.trim();
if (key === 'newmtl') {
// New material
info = {
name: value
};
materialsInfo[value] = info;
} else {
if (key === 'ka' || key === 'kd' || key === 'ks' || key === 'ke') {
var ss = value.split(delimiter_pattern, 3);
info[key] = [_parseFloat(ss[0]), _parseFloat(ss[1]), _parseFloat(ss[2])];
} else {
info[key] = value;
}
}
}
var materialCreator = new THREE.MTLLoader.MaterialCreator(this.resourcePath || path, this.materialOptions);
materialCreator.setCrossOrigin(this.crossOrigin);
materialCreator.setManager(this.manager);
materialCreator.setMaterials(materialsInfo);
return materialCreator;
}
});
/**
* Create a new THREE.MTLLoader.MaterialCreator
* @param baseUrl - Url relative to which textures are loaded
* @param options - Set of options on how to construct the materials
* side: Which side to apply the material
* THREE.FrontSide (default), THREE.BackSide, THREE.DoubleSide
* wrap: What type of wrapping to apply for textures
* THREE.RepeatWrapping (default), THREE.ClampToEdgeWrapping, THREE.MirroredRepeatWrapping
* normalizeRGB: RGBs need to be normalized to 0-1 from 0-255
* Default: false, assumed to be already normalized
* ignoreZeroRGBs: Ignore values of RGBs (Ka,Kd,Ks) that are all 0's
* Default: false
* @constructor
*/
THREE.MTLLoader.MaterialCreator = function (baseUrl, options) {
this.baseUrl = baseUrl || '';
this.options = options;
this.materialsInfo = {};
this.materials = {};
this.materialsArray = [];
this.nameLookup = {};
this.side = this.options && this.options.side ? this.options.side : THREE.FrontSide;
this.wrap = this.options && this.options.wrap ? this.options.wrap : THREE.RepeatWrapping;
};
THREE.MTLLoader.MaterialCreator.prototype = {
constructor: THREE.MTLLoader.MaterialCreator,
crossOrigin: 'anonymous',
setCrossOrigin: function setCrossOrigin(value) {
this.crossOrigin = value;
return this;
},
setManager: function setManager(value) {
this.manager = value;
},
setMaterials: function setMaterials(materialsInfo) {
this.materialsInfo = this.convert(materialsInfo);
this.materials = {};
this.materialsArray = [];
this.nameLookup = {};
},
convert: function convert(materialsInfo) {
if (!this.options) return materialsInfo;
var converted = {};
for (var mn in materialsInfo) {
// Convert materials info into normalized form based on options
var mat = materialsInfo[mn];
var covmat = {};
converted[mn] = covmat;
for (var prop in mat) {
var save = true;
var value = mat[prop];
var lprop = prop.toLowerCase();
switch (lprop) {
case 'kd':
case 'ka':
case 'ks':
// Diffuse color (color under white light) using RGB values
if (this.options && this.options.normalizeRGB) {
value = [value[0] / 255, value[1] / 255, value[2] / 255];
}
if (this.options && this.options.ignoreZeroRGBs) {
if (value[0] === 0 && value[1] === 0 && value[2] === 0) {
// ignore
save = false;
}
}
break;
default:
break;
}
if (save) {
covmat[lprop] = value;
}
}
}
return converted;
},
preload: function preload() {
for (var mn in this.materialsInfo) {
this.create(mn);
}
},
getIndex: function getIndex(materialName) {
return this.nameLookup[materialName];
},
getAsArray: function getAsArray() {
var index = 0;
for (var mn in this.materialsInfo) {
this.materialsArray[index] = this.create(mn);
this.nameLookup[mn] = index;
index++;
}
return this.materialsArray;
},
create: function create(materialName) {
if (this.materials[materialName] === undefined) {
this.createMaterial_(materialName);
}
return this.materials[materialName];
},
createMaterial_: function createMaterial_(materialName) {
// Create material
var scope = this;
var mat = this.materialsInfo[materialName];
var params = {
name: materialName,
side: this.side
};
function resolveURL(baseUrl, url) {
if (typeof url !== 'string' || url === '') return ''; // Absolute URL
if (/^https?:\/\//i.test(url)) return url;
return baseUrl + url;
}
function setMapForType(mapType, value) {
if (params[mapType]) return; // Keep the first encountered texture
var texParams = scope.getTextureParams(value, params);
var map = scope.loadTexture(resolveURL(scope.baseUrl, texParams.url));
map.repeat.copy(texParams.scale);
map.offset.copy(texParams.offset);
map.wrapS = scope.wrap;
map.wrapT = scope.wrap;
params[mapType] = map;
}
for (var prop in mat) {
var value = mat[prop];
var n;
if (value === '') continue;
switch (prop.toLowerCase()) {
// Ns is material specular exponent
case 'kd':
// Diffuse color (color under white light) using RGB values
params.color = new THREE.Color().fromArray(value);
break;
case 'ks':
// Specular color (color when light is reflected from shiny surface) using RGB values
params.specular = new THREE.Color().fromArray(value);
break;
case 'ke':
// Emissive using RGB values
params.emissive = new THREE.Color().fromArray(value);
break;
case 'map_kd':
// Diffuse texture map
setMapForType("map", value);
break;
case 'map_ks':
// Specular map
setMapForType("specularMap", value);
break;
case 'map_ke':
// Emissive map
setMapForType("emissiveMap", value);
break;
case 'norm':
setMapForType("normalMap", value);
break;
case 'map_bump':
case 'bump':
// Bump texture map
setMapForType("bumpMap", value);
break;
case 'map_d':
// Alpha map
setMapForType("alphaMap", value);
params.transparent = true;
break;
case 'ns':
// The specular exponent (defines the focus of the specular highlight)
// A high exponent results in a tight, concentrated highlight. Ns values normally range from 0 to 1000.
params.shininess = _parseFloat(value);
break;
case 'd':
n = _parseFloat(value);
if (n < 1) {
params.opacity = n;
params.transparent = true;
}
break;
case 'tr':
n = _parseFloat(value);
if (this.options && this.options.invertTrProperty) n = 1 - n;
if (n > 0) {
params.opacity = 1 - n;
params.transparent = true;
}
break;
default:
break;
}
}
this.materials[materialName] = new THREE.MeshPhongMaterial(params);
return this.materials[materialName];
},
getTextureParams: function getTextureParams(value, matParams) {
var texParams = {
scale: new THREE.Vector2(1, 1),
offset: new THREE.Vector2(0, 0)
};
var items = value.split(/\s+/);
var pos;
pos = items.indexOf('-bm');
if (pos >= 0) {
matParams.bumpScale = _parseFloat(items[pos + 1]);
items.splice(pos, 2);
}
pos = items.indexOf('-s');
if (pos >= 0) {
texParams.scale.set(_parseFloat(items[pos + 1]), _parseFloat(items[pos + 2]));
items.splice(pos, 4); // we expect 3 parameters here!
}
pos = items.indexOf('-o');
if (pos >= 0) {
texParams.offset.set(_parseFloat(items[pos + 1]), _parseFloat(items[pos + 2]));
items.splice(pos, 4); // we expect 3 parameters here!
}
texParams.url = items.join(' ').trim();
return texParams;
},
loadTexture: function loadTexture(url, mapping, onLoad, onProgress, onError) {
var texture;
var manager = this.manager !== undefined ? this.manager : THREE.DefaultLoadingManager;
var loader = manager.getHandler(url);
if (loader === null) {
loader = new THREE.TextureLoader(manager);
}
if (loader.setCrossOrigin) loader.setCrossOrigin(this.crossOrigin);
texture = loader.load(url, onLoad, onProgress, onError);
if (mapping !== undefined) texture.mapping = mapping;
return texture;
}
};