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Posted to commits@echarts.apache.org by GitBox <gi...@apache.org> on 2020/04/29 12:08:33 UTC
[GitHub] [incubator-echarts] yycyeung opened a new issue #12539: TypeError: api.coord is not a function Errror
yycyeung opened a new issue #12539:
URL: https://github.com/apache/incubator-echarts/issues/12539
### Version
3.8.5
### Steps to reproduce
draw polygons like https://echarts.apache.org/examples/en/editor.html?c=map-polygon
### What is expected?
many beautiful polygons in my map
### What is actually happening?
"TypeError: api.coord is not a function" appears
---
i found out that there is no coord function in my api object (no coordSys in param as well)
I search online, and people suggest me to import echarts/extension/bmap
The problem is i am using the leaflet extension but not bmap, I would like to know is it possible to draw polygon in leaflet or it is necessary to include bmap in my work?
"echarts": "^3.8.5",
"echarts-leaflet": "^1.1.0",
"leaflet": "^1.6.0"
btw....I cannot open the echarts gallery https://gallery.echartsjs.com/ is it run by u guys?
Thank you for your time ;) and Sorry if you feel like its not a bug...
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[GitHub] [incubator-echarts] echarts-bot[bot] commented on issue #12539: TypeError: api.coord is not a function Errror
Posted by GitBox <gi...@apache.org>.
echarts-bot[bot] commented on issue #12539:
URL: https://github.com/apache/incubator-echarts/issues/12539#issuecomment-621161139
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[GitHub] [incubator-echarts] yycyeung commented on issue #12539: TypeError: api.coord is not a function Errror
Posted by GitBox <gi...@apache.org>.
yycyeung commented on issue #12539:
URL: https://github.com/apache/incubator-echarts/issues/12539#issuecomment-623275667
> BTW, we can also draw polygons with `leaflet` api and it's not necessary to use echarts to draw.
>
> ```js
> var leaflet = myChart.getModel().getComponent('leaflet').getLeaflet();
> var latlngs = [
> [39.53, 116.7],
> [36.03, 103.73],
> [27.87, 112.91],
> [28.01, 120.65],
> [39.95, 119.57]
> ];
> L.polygon(latlngs, { color: 'red' }).addTo(leaflet);
> ```
>
> Also, that's our expected result.
>
> 
lol you are right, thanks a lot ;DDDDD
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[GitHub] [incubator-echarts] yycyeung commented on issue #12539: TypeError: api.coord is not a function Errror
Posted by GitBox <gi...@apache.org>.
yycyeung commented on issue #12539:
URL: https://github.com/apache/incubator-echarts/issues/12539#issuecomment-623223317
> A `coordinateSystem` in your case is required. If you want to use echarts in leaflet, you may need an echarts plugin for leaflet. Within the example, it can draw polygons by using the [custom series](https://echarts.apache.org/en/option.html#series-custom) since it depends on the plugin [Extension for Baidu Map](https://github.com/apache/incubator-echarts/tree/master/extension/bmap) which is provided officially.
> There may be no need to use bmap, you can search in Github with the keyword `leaflet-echarts` to pick one suitable for you.
> BTW, I think the version you are using is too old, it's better to upgrade it to 4.x. :)
>
> 
yess. I use echarts-leaflet, the third one in the pic I updated the echarts to 4.X.X but still got "prepareCustoms[coordSys.type] is not a function"
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[GitHub] [incubator-echarts] susiwen8 commented on issue #12539: TypeError: api.coord is not a function Errror
Posted by GitBox <gi...@apache.org>.
susiwen8 commented on issue #12539:
URL: https://github.com/apache/incubator-echarts/issues/12539#issuecomment-621221761
@yycyeung Have you tried the latest ECharts? Version 4.7?
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[GitHub] [incubator-echarts] plainheart edited a comment on issue #12539: TypeError: api.coord is not a function Errror
Posted by GitBox <gi...@apache.org>.
plainheart edited a comment on issue #12539:
URL: https://github.com/apache/incubator-echarts/issues/12539#issuecomment-623239002
@yycyeung My pleasure.
**Fixing code**
```js
LeafletCoordSys.prototype.prepareCustoms = function (data) {
var rect = this.getViewRect();
return {
coordSys: {
type: 'leaflet',
x: rect.x,
y: rect.y,
width: rect.width,
height: rect.height
},
api: {
coord: echarts.util.bind(this.dataToPoint, this),
size: echarts.util.bind(dataToCoordSize, this)
}
};
};
function dataToCoordSize(dataSize, dataItem) {
dataItem = dataItem || [0, 0];
return echarts.util.map([0, 1], function (dimIdx) {
var val = dataItem[dimIdx];
var halfSize = dataSize[dimIdx] / 2;
var p1 = [];
var p2 = [];
p1[dimIdx] = val - halfSize;
p2[dimIdx] = val + halfSize;
p1[1 - dimIdx] = p2[1 - dimIdx] = dataItem[1 - dimIdx];
return Math.abs(this.dataToPoint(p1)[dimIdx] - this.dataToPoint(p2)[dimIdx]);
}, this);
}
```
- Add codes above to the dist file `echarts-leaflet.js` after [line 87](https://github.com/gnijuohz/echarts-leaflet/blob/master/dist/echarts-leaflet.js#L87) or modify the source file `LeafletCoordSys.js` and rebuild it.
- Rerun your project and we can see the expected result. (Maybe need to rebuild if you are using esModule)
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[GitHub] [incubator-echarts] plainheart commented on issue #12539: TypeError: api.coord is not a function Errror
Posted by GitBox <gi...@apache.org>.
plainheart commented on issue #12539:
URL: https://github.com/apache/incubator-echarts/issues/12539#issuecomment-621222062
A `coordinateSystem` in your case is required. If you want to use echarts in leaflet, you may need an echarts plugin for leaflet. Within the example, it can draw polygons by using the [custom series](https://echarts.apache.org/en/option.html#series-custom) since it depends on the plugin [Extension for Baidu Map](https://github.com/apache/incubator-echarts/tree/master/extension/bmap) which is provided officially.
There may be no need to use bmap, you can search in Github with the keyword `leaflet-echarts` to pick one suitable for you.
BTW, I think the version you are using is too old, it's better to upgrade it to 4.x. :)
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[GitHub] [incubator-echarts] plainheart commented on issue #12539: TypeError: api.coord is not a function Errror
Posted by GitBox <gi...@apache.org>.
plainheart commented on issue #12539:
URL: https://github.com/apache/incubator-echarts/issues/12539#issuecomment-623239002
@yycyeung My pleasure.
**Fixing code**
```js
LeafletCoordSys.prototype.prepareCustoms = function (data) {
var rect = this.getViewRect();
return {
coordSys: {
type: 'leaflet',
x: rect.x,
y: rect.y,
width: rect.width,
height: rect.height
},
api: {
coord: echarts.util.bind(this.dataToPoint, this),
size: echarts.util.bind(dataToCoordSize, this)
}
};
};
function dataToCoordSize(dataSize, dataItem) {
dataItem = dataItem || [0, 0];
return echarts.util.map([0, 1], function (dimIdx) {
var val = dataItem[dimIdx];
var halfSize = dataSize[dimIdx] / 2;
var p1 = [];
var p2 = [];
p1[dimIdx] = val - halfSize;
p2[dimIdx] = val + halfSize;
p1[1 - dimIdx] = p2[1 - dimIdx] = dataItem[1 - dimIdx];
return Math.abs(this.dataToPoint(p1)[dimIdx] - this.dataToPoint(p2)[dimIdx]);
}, this);
}
```
- Add codes above to the dist file `echarts-leaflet.js` after [line 87](https://github.com/gnijuohz/echarts-leaflet/blob/master/dist/echarts-leaflet.js#L87) or modify the source file and rebuild it.
- Rerun your project and we can see the expected result. (Maybe need to rebuild if you are using esModule)
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[GitHub] [incubator-echarts] plainheart edited a comment on issue #12539: TypeError: api.coord is not a function Errror
Posted by GitBox <gi...@apache.org>.
plainheart edited a comment on issue #12539:
URL: https://github.com/apache/incubator-echarts/issues/12539#issuecomment-623240560
BTW, we can also draw polygons with `leaflet` api and it's not necessary to use echarts to draw.
```js
var leaflet = myChart.getModel().getComponent('leaflet').getLeaflet();
var latlngs = [
[39.53, 116.7],
[36.03, 103.73],
[27.87, 112.91],
[28.01, 120.65],
[39.95, 119.57]
];
L.polygon(latlngs, { color: 'red' }).addTo(leaflet);
```
Also, that's our expected result.
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[GitHub] [incubator-echarts] plainheart commented on issue #12539: TypeError: api.coord is not a function Errror
Posted by GitBox <gi...@apache.org>.
plainheart commented on issue #12539:
URL: https://github.com/apache/incubator-echarts/issues/12539#issuecomment-623240560
BTW, we can also draw polygons with `leaflet` api and it's not necessary to use echarts to draw.
```js
var leaflet = myChart.getModel().getComponent('leaflet').getLeaflet();
var latlngs = [
[39.53, 116.7],
[36.03, 103.73],
[27.87, 112.91],
[28.01,120.65],
[39.95, 119.57]
];
L.polygon(latlngs, { color: 'red' }).addTo(leaflet);
```
Also, that's our expected result.
----------------------------------------------------------------
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[GitHub] [incubator-echarts] yycyeung commented on issue #12539: TypeError: api.coord is not a function Errror
Posted by GitBox <gi...@apache.org>.
yycyeung commented on issue #12539:
URL: https://github.com/apache/incubator-echarts/issues/12539#issuecomment-623236679
> @yycyeung OK! I have found this error is caused by the `echarts-leaflet` plugin since this plugin does not support custom series. I will give you some fixing suggestions later. :)
great! thanks a lot
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[GitHub] [incubator-echarts] plainheart commented on issue #12539: TypeError: api.coord is not a function Errror
Posted by GitBox <gi...@apache.org>.
plainheart commented on issue #12539:
URL: https://github.com/apache/incubator-echarts/issues/12539#issuecomment-623235969
@yycyeung OK! I have found this error is caused by the `echarts-leaflet` plugin since this plugin does not support custom series. I will give you some fixing suggestions later. :)
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[GitHub] [incubator-echarts] yycyeung commented on issue #12539: TypeError: api.coord is not a function Errror
Posted by GitBox <gi...@apache.org>.
yycyeung commented on issue #12539:
URL: https://github.com/apache/incubator-echarts/issues/12539#issuecomment-623223129
> @yycyeung Have you tried the latest ECharts? Version 4.7?
Yesss. still got "prepareCustoms[coordSys.type] is not a function"
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[GitHub] [incubator-echarts] Ovilia commented on issue #12539: TypeError: api.coord is not a function Errror
Posted by GitBox <gi...@apache.org>.
Ovilia commented on issue #12539:
URL: https://github.com/apache/incubator-echarts/issues/12539#issuecomment-624442195
@yycyeung If your problem has been solved, please close the issue.
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