i am trying to build arcgis scene with my custom 3d models with ModelSceneSymbol but when the model finally loaded(.dae format) it appeared pure white when i explicitly designed it red, also most of the other formats like .fbx,obj etc. don't seem to get rendered on the scene, can anyone give me a solution for the color part alone, i am using vectary for 3d model creation btw
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I am using draw2d javascript library for drawing predefined shapes and custom shapes in it's canvas.
As I don't have any example made yet, I am trying to copy from it's documentation but doesn't seem to find a good way to research it as it contains a whole lot of it.
Here is the circle example.
http://www.draw2d.org/draw2d_touch/jsdoc_6/#!/api/draw2d.shape.basic.Circle
and here are some more documentation with examples.
http://www.draw2d.org/draw2d_touch/jsdoc_6/
I have premade shapes with html and css and I am trying to drag and drop and render them on canvas like these in this image. Also when dropped, they should have input and output ports too.
Is it possible to convert this html/css to draw2d shapes?
So here this is made possible via extending draw2d's SVGFigure and thus we have ability to provide custom svg to render it as a custom shape.
Below links were useful in this context.
http://www.draw2d.org/draw2d_touch/jsdoc/#!/guide/extending_svg_figure-section-live-example
https://github.com/freegroup/draw2d/tree/master/examples/shape_custom_svg
http://www.draw2d.org/draw2d_touch/jsdoc_6/#!/api/draw2d.SetFigure
https://github.com/freegroup/draw2d/tree/master/examples/shape_labeld
https://github.com/freegroup/draw2d/tree/master/examples/shape_custom_markdown
We are looking at using the Forge Viewer for a project to display and markup plans, etc. (for now just 2D, 3D may be added in the future). For some of these items we will have DWG Files that we can convert using model derivative API so no problem there. However, the client also has quite a few existing drawings saved in svg format from their legacy system.
The question is if there is a good way to convert those base svg files into svf that we can display as the 'main' drawing/view in Forge Viewer. I have found things about creating a markup layer from an svg file, but that's not really what we want. We would be using markups to have the user draw on top of the plan with their own tools and place markers, etc. but the main drawing should be from the svg file that they have.
Forgive me if this is simple but I'm fairly new to the viewer and model derivative API so I'm not figuring out how to make this work.
There is no translation support for SVG, to generate an SVF model out of it.
You could either
a) use the SVG inside a format that we support (e.g. DWG - perhaps place the SVG in it using Design Automation API) and translate that to SVF
b) load a dummy model as shown here, and then add the SVG as e.g. markup
My objective here is to allow users to specify territories or regions given a background world-map overlay, which is an SVG generated from GeoJSON data using D3. I have done the part where the territories' points are pinpointed by the user, and an SVG is generated. This works well.
Now I would like to save the territory's coordinates, using the background map's projection, scale and translation. I saw a lot of documentation about translating GeoJSON data to SVG s, but nothing about the other way. Is it even possible ?
Thanks Ben Lyall, eventually I used the native SVG functions getTotalLength() and getPointAtLength() to convert my path to an array of top/left positions (in pixels), then d3's projection.invert() to translate them into coordinates.
Hy
I have a rendering issue with text in WebGL.
Here the pb:
The first rendering is crappy the second is OK.
The difference is my DOM (nothing related to the HTML DOM):
The difference between the view V2 and V3 is:
V2 is just a green rectangle (composed of 2 GL triangles) and contains a DOM child V4 which is a Text View (means a text, render into a Canvas then copy into a texture)
The blend is done by the GPU
V3 is TextView with a green background. The text is rendered into a Canvas then into a texture (like the V4). And a Shader fill the rectangle and takes the texture to generate the final view => no blend (actually done by the shader)
It should be a problem of blend and texture configuration. But I cannot find the right configuration.
Here my default configuration for the blend:
gl_ctx.disable (gl_ctx.DEPTH_TEST);
gl_ctx.enable (gl_ctx.BLEND);
gl_ctx.blendFunc (gl_ctx.SRC_ALPHA, gl_ctx.ONE_MINUS_SRC_ALPHA);
gl_ctx.clearDepth (1.0);
gl_ctx.clearColor (1, 1, 1, 1);
Thanks in advance for your help.
NOTE 1: A view (Vn) is the basic document object into my WebGL toolkit. It's called internally a Sprite, it's composed basically by 4 vertices, and a vertex and fragment shaders are associated to it, for the rendering purpose.
NOTE 2: If I use this blend configuration:
gl_ctx.blendFunc (gl_ctx.ONE, gl_ctx.ONE_MINUS_SRC_ALPHA);
The text rendering works well but the rest of rendering, specially images had incorrect alpha.
NOTE 3: sorry dont have enough reputation(!!!) to include image in my post :-(
Canvas 2D always uses pre-multiplied alpha so you pretty much have to use the second blendfunc. Can you set that blendfunc just when you render text?
I'm working with nokia HERE maps and I want to add an additional layer of visualization graphics on top of a map. Since the possibilities to interact, manipulate and customize the graphics created by the HERE api are limited, I would like to work with d3.js/SVG for my visualizations.
My straight forward and obvious solution would have been to just add an absolute positioned SVG element on top of the map and giving it the same dimensions. But of course that takes every possibility to interact with the map. Is there any solution to add an overlay to the map which allows me to put SVG on it while maintaining the full interactivity (panning, zooming, clicking) of the map? Also it should be possible to interact with the SVG.
I know that there is a possibility to add a custom overlay of tiles provided by a tile server to HERE maps but that's not really what I'm looking for. I'm looking for something like the solution google has to offer to this problem. A set of custom layers which are always in sync with the corresponding map and have their own initialize, draw and remove methods. Is there something similar for HERE maps?
I think you are after the nokia.maps.map.provider.CanvasProvider class. This class provides a ground overlay bound to a specific area which offers a draw() method. The attach() method is the equivalent of your intialize I think, and you can refresh the overlay using update().
Depending upon your use case, I've also found the following techniques useful regarding SVG, Images and HERE Maps:
For an SVG marker which is anchored to a point and doesn't resize
use: SVG Markers
Alternatively override the Marker class and write using the low
level graphics commands to add flexibility to the rendering of a
marker anchored to a point. Like this: Defaced Marker
To add an image bound to a specific area use the ImageProvider class
To add a series of tiled images from a TMS (Tile Map Service) use the ImgTileProvider class
Alternatively if the [zoom][col][row] is useful to you and you
want to write SVG based stuff yourself try something like this example - which combines
SVG with 256x256 pixel markers.
Note that the HERE Maps API for JavaScript only supports SVG Tiny.
A class like the old nokia.maps.map.provider.CanvasProvider isn't even available on the new v3 API from Here.
Your best bet is on Leaflet using custom providers loading Here map tiles. Then you just load this Custom Overlay class and you're all set to draw D3, WebGL, whatever you need. Leaflet only loads the tiles from the providers and exposes some simple APIs. You will not have to deal with any of the providers' APIs.
Just don't forget to add your app_id and app_code to the provider class.