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node_modules/echarts/lib/scale/Log.js

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+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import { __extends } from "tslib";
+import Scale from './Scale.js';
+import IntervalScale from './Interval.js';
+import { logScalePowTick, logScaleLogTick } from './helper.js';
+import { getBreaksUnsafe, getScaleBreakHelper } from './break.js';
+import { getMinorTicks } from './minorTicks.js';
+import { decorateScaleMapper, enableScaleMapperFreeze, SCALE_EXTENT_KIND_EFFECTIVE, SCALE_MAPPER_DEPTH_OUT_OF_BREAK } from './scaleMapper.js';
+import { map } from 'zrender/lib/core/util.js';
+import { isValidBoundsForExtent } from '../util/model.js';
+import { isNullableNumberFinite } from '../util/number.js';
+var LOOKUP_IDX_EXTENT_START = 0;
+var LOOKUP_IDX_EXTENT_END = 1;
+var LOOKUP_IDX_BREAK_START = 2;
+/**
+ * @final NEVER inherit me!
+ */
+var LogScale = /** @class */function (_super) {
+  __extends(LogScale, _super);
+  function LogScale(setting) {
+    var _this = _super.call(this) || this;
+    _this.type = 'log';
+    _this.parse = IntervalScale.parse;
+    _this.base = setting.logBase || 10;
+    var lookupFrom = [];
+    var lookupTo = [];
+    var lookup = _this._lookup = {
+      from: lookupFrom,
+      to: lookupTo
+    };
+    lookupFrom[LOOKUP_IDX_EXTENT_START] = lookupFrom[LOOKUP_IDX_EXTENT_END] = lookupTo[LOOKUP_IDX_EXTENT_START] = lookupTo[LOOKUP_IDX_EXTENT_END] = NaN;
+    decorateScaleMapper(_this, LogScale.mapperMethods);
+    var scaleBreakHelper = getScaleBreakHelper();
+    var breakOption = setting.breakOption;
+    var out = {
+      lookup: lookup
+    };
+    if (scaleBreakHelper) {
+      scaleBreakHelper.parseAxisBreakOptionInwardTransform(breakOption, _this, {
+        noNegative: true
+      }, LOOKUP_IDX_BREAK_START, out);
+    }
+    _this.powStub = new IntervalScale({
+      breakParsed: out.original
+    });
+    _this.intervalStub = new IntervalScale({
+      breakParsed: out.transformed
+    });
+    enableScaleMapperFreeze(_this, _this.intervalStub);
+    return _this;
+  }
+  LogScale.prototype.getTicks = function (opt) {
+    var base = this.base;
+    var powStub = this.powStub;
+    var scaleBreakHelper = getScaleBreakHelper();
+    var intervalStub = this.intervalStub;
+    var intervalExtent = intervalStub.getExtent();
+    var powExtent = powStub.getExtent();
+    var powOpt = {
+      lookup: {
+        from: intervalExtent,
+        to: powExtent
+      }
+    };
+    return map(intervalStub.getTicks(opt || {}), function (tick) {
+      var val = tick.value;
+      var powVal = logScalePowTick(val, base, powOpt);
+      var vBreak;
+      if (scaleBreakHelper) {
+        var brkPowResult = scaleBreakHelper.getTicksBreakOutwardTransform(this, tick, getBreaksUnsafe(powStub), this._lookup);
+        if (brkPowResult) {
+          vBreak = brkPowResult.vBreak;
+          powVal = brkPowResult.tickVal;
+        }
+      }
+      return {
+        value: powVal,
+        "break": vBreak
+      };
+    }, this);
+  };
+  LogScale.prototype.getMinorTicks = function (splitNumber) {
+    return getMinorTicks(this, splitNumber, getBreaksUnsafe(this.powStub),
+    // NOTE: minor ticks are in the log scale value to visually hint users "logarithm".
+    this.intervalStub.getConfig().interval);
+  };
+  LogScale.prototype.getLabel = function (data, opt) {
+    return this.intervalStub.getLabel(data, opt);
+  };
+  LogScale.type = 'log';
+  LogScale.mapperMethods = {
+    needTransform: function () {
+      return true;
+    },
+    normalize: function (val) {
+      return this.intervalStub.normalize(logScaleLogTick(val, this.base));
+    },
+    scale: function (val) {
+      // PENDING: Input `intervalStub.getExtent()` and `powStub.getExtent()` may
+      // break monotonicity. Do not do it until real problems found.
+      return logScalePowTick(this.intervalStub.scale(val), this.base, null);
+    },
+    transformIn: function (val, opt) {
+      val = logScaleLogTick(val, this.base);
+      return opt && opt.depth === SCALE_MAPPER_DEPTH_OUT_OF_BREAK ? val : this.intervalStub.transformIn(val, opt);
+    },
+    transformOut: function (val, opt) {
+      var depth = opt ? opt.depth : null;
+      tmpTransformOutOpt1.depth = depth;
+      tmpTransformOutOpt2.lookup = this._lookup;
+      return logScalePowTick(depth === SCALE_MAPPER_DEPTH_OUT_OF_BREAK ? val : this.intervalStub.transformOut(val, tmpTransformOutOpt1), this.base, tmpTransformOutOpt2);
+    },
+    contain: function (val) {
+      return this.powStub.contain(val);
+    },
+    /**
+     * NOTICE: The caller should ensure `start` and `end` are both non-negative.
+     */
+    setExtent: function (start, end) {
+      this.setExtent2(SCALE_EXTENT_KIND_EFFECTIVE, start, end);
+    },
+    setExtent2: function (kind, start, end) {
+      if (!isValidBoundsForExtent(start, end) || start <= 0 || end <= 0) {
+        return;
+      }
+      var lookupTo = tmpNotUsedArr;
+      var lookupFrom = tmpNotUsedArr;
+      if (kind === SCALE_EXTENT_KIND_EFFECTIVE) {
+        var lookup = this._lookup;
+        lookupTo = lookup.to;
+        lookupFrom = lookup.from;
+      }
+      this.powStub.setExtent2(kind, lookupTo[LOOKUP_IDX_EXTENT_START] = start, lookupTo[LOOKUP_IDX_EXTENT_END] = end);
+      var base = this.base;
+      this.intervalStub.setExtent2(kind, lookupFrom[LOOKUP_IDX_EXTENT_START] = logScaleLogTick(start, base), lookupFrom[LOOKUP_IDX_EXTENT_END] = logScaleLogTick(end, base));
+    },
+    getFilter: function () {
+      return {
+        g: 0
+      };
+    },
+    sanitize: function (value, dataExtent) {
+      // Conservative - if dataExtent is invalid, do not sanitize.
+      if (isValidBoundsForExtent(dataExtent[0], dataExtent[1]) && isNullableNumberFinite(value) && value <= 0) {
+        // `DataStore` has ensured that `dataExtent` is valid for LogScale.
+        value = dataExtent[0];
+      }
+      return value;
+    },
+    getDefaultStartValue: function () {
+      return 1;
+    },
+    getExtent: function () {
+      return this.powStub.getExtent();
+    },
+    getExtentUnsafe: function (kind, depth) {
+      return depth === null ? this.powStub.getExtentUnsafe(kind, null) : this.intervalStub.getExtentUnsafe(kind, depth);
+    }
+  };
+  return LogScale;
+}(Scale);
+Scale.registerClass(LogScale);
+var tmpTransformOutOpt1 = {};
+var tmpTransformOutOpt2 = {};
+var tmpNotUsedArr = [];
+export default LogScale;