I'm Juyeong.
I want use arrows option in polyline.
I found need setting map engine p2d for use arrows option in document.
But there didn't show how setting map engine.
I try use arrows option, but failed.
var style = function(feature){
var areaLightGrade = feature.data.area_light_grade;
feature.setStyle({
strokeColor: '#ffffffff',
fillColor: chooseLightGradeColor(areaLightGrade),
lineWidth: 1
});
};
// Create reader object initializing it with a document:
var reader = new H.data.geojson.Reader('http://127.0.0.1:8887/area_20180707.geojson', {style: style, disableLegacyMode: true});
Could you please tell me how can I use arrows option?
I'll looking forward your reply.
Thanks.
I found what is wrong.
I didn't set "disableLegacyMode" option.
When set that option, multipolygon did working.
Related
Is it possible change the style of a external wms layer??
im trying to use this layer:
https://firms.modaps.eosdis.nasa.gov/wms/?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&LAYERS=fires24&width=400&height=250&BBOX=-26,34,35,82
with this code on openlayers3
var fill = new ol.style.Fill({color: 'GREEN'});
var stroke = new ol.style.Stroke({color: 'GREEN'});
var styles = [new ol.style.Style({
image: new ol.style.Circle({
fill: fill,
stroke: stroke,
radius: 5
})
})];
var fires = new ol.layer.Image({
name: 'fires',
source: new ol.source.ImageWMS({
url: 'https://firms.modaps.eosdis.nasa.gov/wms/',
params: {
'LAYERS': 'fires24',
'VERSION': '1.1.1'
}
}),
style: styles
});
the layer is displayed correctly but without my own styles.
Is it possible to do that or replace with a custom icon?
The WMS link you use is returning a PNG file, which I believe OpenLayers cannot style 'after the fact'. Once you've got it it's immutable - it's not 'data' but an image with transparency that is overlaid on top of your underlying map source.
There are some params you can pass into a wms call (as you've done) and the standard looks like it can support you passing styles into the call to the WMS server to get it to use those when rendering the image.
I've got a list of possible parameters from the geoserver website (a GIS server) - http://docs.geoserver.org/stable/en/user/services/wms/reference.html
Looking at that link it looks like sld or sld_body parameters may work. SLD is like OL styles but in XML. Details of these stylesheets are here - http://docs.geoserver.org/stable/en/user/styling/index.html#styling
I've had a go at this jsfiddle : https://jsfiddle.net/y7fj57dj/ but it's not working as such - it could either be my SLD (I'm not up to speed with it) or the NASA server doesn't know what to do with it/is ignoring it.
You may need to contact NASA server admins to confirm if you can style the WMS calls (support#earthdata.nasa.gov, retrieved by going to https://firms.modaps.eosdis.nasa.gov/wms/?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetCapabilities).
I am using a 2d line graph of vis.js (http://visjs.org/graph2d_examples.html ). Is there any way to add a tooltip to the data points so that when you mouse over or click you see the value in a pop up or somewhere else?
This is a feature they plan on adding.. the closest thing I see is this comment on trying to tackle the issue themselves:
https://github.com/almende/vis/issues/282#issuecomment-65728474
This solution is rather simpe:
Add label to points, eg.
var point = {
x: ...,
y: ...,
label: {
content: POINT_LABEL
}
};
points.push(point);
var dataset = new vis.DataSet(points);
Reference:
https://github.com/almende/vis/issues/282#issuecomment-217528166
I'm changing from markers to vector layer and I can't make my site to use any sort of non-default icon, whatever I put in externalGraphic style attribute doesnt have effect on map. I just see orange circles. To be exact, no matter what I put in Openlayers.Style to style my point features, I get default look of icons.
It should be easy, but I try for days and can't make it work, so I came here for help. When warstwa_ikon was markers layer everything was fine, but I need extra functionality.
Thats my styling code:
var StylIkony = new OpenLayers.Style({
externalGraphic : '${symbol}',
graphicWidth : 15,
graphicHeight : 15,
cursor : 'pointer'
});
var StylWarstwyIkon = new OpenLayers.StyleMap ({
default: StylIkony,
delete: StylIkony,
select: StylIkony,
temporary: StylIkony
});
warstwa_ikon = new OpenLayers.Layer.Vector("Ikony Lokali",{ eventListeners: { "featureselected": WywolajRamke }});
warstwa_ikon.StyleMap = StylWarstwyIkon;
map.addLayer(warstwa_ikon);
Thats already executed code from generating Features:
WspolrzedneIkony = new OpenLayers.Geometry.Point(2279231, 7127620);
Ikona = new OpenLayers.Feature.Vector(WspolrzedneIkony,
{ "symbol": "../GRAFIKI/IkonyLokali/10.png", "idLokalu": 1 });
warstwa_ikon.addFeatures([Ikona]);
WspolrzedneIkony = new OpenLayers.Geometry.Point(2279245, 7127630);
Ikona = newOpenLayers.Feature.Vector(WspolrzedneIkony,
{ "symbol": "../GRAFIKI/IkonyLokali/6.png", "idLokalu": 2 });
warstwa_ikon.addFeatures([Ikona]);
Thats DOM of my vector layers (warstwa_ikon) StyleMap:
http://s24.postimg.org/hwfjakg0l/stylemap.png
Thats DOM of my vector layer first Feature, which should be styled:
http://s9.postimg.org/oxlocyku7/feature.png
Sorry, I can't include normal images yet. I should add that this is not a problem with accessing icon image file, I can't get layer to use any sort of images, even from internet links.
Declares StyleMap on layer creation as:
warstwa_ikon = new OpenLayers.Layer.Vector("Ikony Lokali", {
styleMap: StylWarstwyIkon,
eventListeners: ...
});
and removes:
warstwa_ikon.StyleMap = StylWarstwyIkon;
iam doing a project using openseadragon check out the below example.
a samle openseadragon image
In the Onclick method want to find the cordinates(px,py) of the image.Is there any method?? please help this is ma first openseadragon project.
thanks
When you get a click, it'll be in window pixel coordinates. You can then translate it into viewport coordinates (which go from 0.0 on the left to 1.0 on the right). You can then translate those into image coordinates. Here's how it would look all together:
viewer.addHandler('canvas-click', function(event) {
var viewportPoint = viewer.viewport.pointFromPixel(event.position);
var imagePoint = viewer.viewport.viewportToImageCoordinates(viewportPoint.x, viewportPoint.y);
console.log(imagePoint.x, imagePoint.y);
});
For more info on the coordinate systems, see: http://openseadragon.github.io/examples/viewport-coordinates/
The following code, adapted from #iangilman's answer, worked for me with OpenSeadragon 2.0.0. It seems that the second argument of the handler function got removed in more recent versions. I added the quick === true condition to keep it from firing on a drag start. It might also be a good idea to switch of the default single-click-to-zoom behaviour in the gestureSettingsMouse object.
viewer = OpenSeadragon({
id: "osd1",
prefixUrl: "/path/to/seadragon/images/",
tileSources: "/path/to/tif/images/image.tif.dzi",
showNavigator: true,
gestureSettingsMouse: {
clickToZoom: false,
dblClickToZoom: true
}
});
viewer.addHandler('canvas-click', function(target) {
if(target.quick === true){
var viewportPoint = viewer.viewport.pointFromPixel(target.position);
var imagePoint = viewer.viewport.viewportToImageCoordinates(viewportPoint.x, viewportPoint.y);
console.log(parseInt(imagePoint.x), parseInt(imagePoint.y));
}
});
I am trying to use Jcrop with preview pane in the page of changing avatar. However, after uploading new image file, when I call setImage to set the new image(with different width/height) and also set the attr of the preview image, the preview pane show up incorrectly. I use firebug the trace, it seems the img is still using the height, width of previous image. I modify the tutorial3 in the download package, simply adding a botton to change the image to see if the preview pane is correct or not. I seem to be the same error. Here below is the code for button click function.
Any solutions?
$('#img1').click(function(e) {
$('#preview').attr('src','demo_files/img50d5753eb067c.jpg');
jcrop_api.setImage('demo_files/img50d5753eb067c.jpg');
$('#target').Jcrop({
onChange: updatePreview,
onSelect: updatePreview,
aspectRatio: 1,
boxWidth: 450
},function(){
// Use the API to get the real image size
var bounds = this.getBounds();
boundx = bounds[0];
boundy = bounds[1];
// Store the API in the jcrop_api variable
jcrop_api = this;
});
});
I see the same problem with yours in this topic Change an Image while using JCrop and the answer of AdmSteck in which is the best one.
Hope this help!
within the unminified version of the plugin "boundx and boundy" are declared as local variables that do not get updated outside of the setImage function. All you need to do is remove the 'var' for these two variables and make them global.
from line 328,
var boundx = $img.width(),
boundy = $img.height(),
$div = $('<div />').width(boundx).height(boundy).addClass(cssClass('holder')).css({
position: 'relative',
backgroundColor: options.bgColor
}).insertAfter($origimg).append($img);
change to
boundx = $img.width();
boundy = $img.height();
var $div = $('<div />').width(boundx).height(boundy).addClass(cssClass('holder')).css({
position: 'relative',
backgroundColor: options.bgColor
}).insertAfter($origimg).append($img);