1 | import { Scale, ScaleConfig } from '@antv/scale';
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2 | import { mix, isFunction, isNil, isArray, valuesOfKey } from '@antv/util';
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3 |
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4 | class Base {
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5 |
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6 | data: any;
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7 | field: string;
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8 | scale: Scale;
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9 |
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10 | range: number[] | string[];
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11 | callback: Function;
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12 |
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13 | constructor(options) {
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14 | mix(this, options);
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15 |
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16 | const { scale, field, data } = this;
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17 | if (!scale && data) {
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18 | const values = valuesOfKey(data, field);
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19 | this.scale = this.createScale({ values, field });
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20 | }
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21 | }
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22 |
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23 | createScale(_scaleConfig: ScaleConfig): Scale {
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24 | return null;
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25 | }
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26 |
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27 |
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28 | _mapping(value) {
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29 | return value;
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30 | }
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31 |
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32 | update(options) {
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33 | mix(this, options);
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34 | }
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35 |
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36 | setRange(range) {
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37 | this.range = range;
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38 | }
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39 |
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40 |
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41 | normalize(value) {
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42 | const { scale } = this;
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43 |
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44 | if (isArray(value)) {
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45 | return value.map((v) => {
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46 | return scale.scale(v);
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47 | });
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48 | }
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49 | return scale.scale(value);
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50 | }
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51 |
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52 |
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53 | convert(value) {
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54 | return value;
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55 | }
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56 |
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57 |
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58 | mapping(value, child = null) {
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59 | const rst = isFunction(this.callback) ? this.callback(value, child) : null;
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60 | if (!isNil(rst)) {
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61 | return rst;
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62 | }
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63 | return this._mapping(value);
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64 | }
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65 | }
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66 |
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67 | export default Base;
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