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Code Issues Packages Projects Releases Wiki Activity

Lasso (#586)

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* lasso working

* break out invert into own function

* action

* add spatial dimension to crossfilter, in support of polygon lasso

* improve comments on new dimension API

* lasso vs zoom
This commit is contained in:
Colin Megill
2019-02-08 11:48:51 -08:00
committed by Charlotte Weaver
parent 2e9525741f
commit dbb3a309a9
8 changed files with 564 additions and 146 deletions
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client/src/reducers/controls.js
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+21 -10
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@@ -1,6 +1,8 @@
// jshint esversion: 6
import _ from "lodash";
import { polygonContains } from "d3";
import { World, kvCache, WorldUtil } from "../util/stateManager";
import parseRGB from "../util/parseRGB";
import Crossfilter from "../util/typedCrossfilter";
@@ -479,27 +481,36 @@ const Controls = (
User Events
*******************************/
case "graph brush selection change": {
state.dimensionMap[layoutDimensionName("X")].filterRange([
action.brushCoords.northwest[0],
action.brushCoords.southeast[0]
]);
state.dimensionMap[layoutDimensionName("Y")].filterRange([
action.brushCoords.southeast[1],
action.brushCoords.northwest[1]
]);
state.dimensionMap[layoutDimensionName("XY")].filterWithinRect(
action.brushCoords.northwest,
action.brushCoords.southeast
);
return {
...state,
graphBrushSelection: action.brushCoords
};
}
case "lasso deselect":
case "graph brush deselect": {
state.dimensionMap[layoutDimensionName("X")].filterAll();
state.dimensionMap[layoutDimensionName("Y")].filterAll();
state.dimensionMap[layoutDimensionName("XY")].filterAll();
return {
...state,
graphBrushSelection: null
};
}
case "lasso selection": {
const { polygon } = action;
const dXY = state.dimensionMap[layoutDimensionName("XY")];
if (polygon.length < 3) {
// single point or a line is not a polygon, and is therefore a deselect
dXY.filterAll();
} else {
dXY.filterWithinPolygon(polygon);
}
return {
...state
};
}
case "continuous metadata histogram brush": {
const name = makeContinuousDimensionName(
action.continuousNamespace,