I'm writing a 'template creation' app using the dcc.Graph image annotation features in Plotly Dash.
The user adds multiple rectangles for specific features in the image (an invoice) and my callback captures the coordinates of each rectangle via the relayoutData variable. I want to use a different color for each rectangle, but can't figure out how to do it.
It seems like the only way to change the newshapes fillcolor
property is to replace the whole figure, but then I lose all previous shapes
All and any help appreciated.
Andrew
I have just found the following demo that does exactly what I am trying to do:
https://dash-gallery.plotly.host/dash-image-annotation/
Now to unpack the logic and adapt it to my context ... Happy 2021!
Andrew
Related
I created Forge viewer app w/ Transformation Extension based on GitHub sample "forge-extensions", for unknown reason, gizmo is not visible after I click on element, only very small yellow dot after zoom in, I believe it's element center point and gizmo size is too small, so my question is how to control it? in fact, all the coding is copied from that GitHub sample "forge-extensions", I must miss something simple!
Have you tried your code with different types of models, and does it behave the same for all of them? I believe it may have something to do with the scale of the particular model, especially when looking at these lines of code from the viewer extension:
_transformControlTx.setSize(
bbox.getBoundingSphere().radius * 5);
Try and put a breakpoint there, and see what the radius is. Or try adjusting the hard-coded value.
This works on model which don't have any color:
this.viewer.setThemingColor(node, red, this.model);
But not on model with objects which have a color.
In the docs you can read:
Highlight an object with a theming color that is blended with the
original object’s material.
Blended? What does it mean? How do I set a color to an object if it already has a color?
P.S:
Typescript typedefinition to the Viewer would really be helpfull.
Update
Think it has something to do with the type of object.
I have run both isolate and setThemingColor (red) on the same items.
In the screenshot below, the red door in lower right corner is selected:
It has a "material" heading.
In this screenshot the door next to it (turquoise) is selected. It's missing the material heading.
Do I need to "apply" material or something to make it change color?
Did you supply a THREE.Vector4 object as color or the second argument? Just dug into the code and it wasn't any type check logic and would lead to your error if the wrong type is given. Also make sure you put in the right model object as the third argument, otherwise the render won't know which model to apply the colors when you have multiple models.
You can details about the usage of this method below:
https://forge.autodesk.com/en/docs/viewer/v6/reference/javascript/viewer3d/#setthemingcolor-dbid-color-model
Edit:
If the component is lacking a material pls see here on how to add a custom one: https://forge.autodesk.com/blog/using-dynamic-texture-inside-custom-shaders
PS: We are working on TypeScript definitions for Viewer and Forge SDK and they could be released soon. Stay tuned!
I am new to Lua scripting, and game development. So please I am just a noob in Lua.
I have searched the net for solutions to my problems, without any luck.
I use Photoshop, Corona, Dusk, json and Tiled on windows7.
I am creating a "board" like game, i.e. Setlers. I am using a world map, as the background. The background image of the game area is a world map (world.png file). I have no problem here.
I would like to create transparrent clickable objects matching the countrys borders on my gamemap with all parameters and values (I have added in Tiled) stored in the object. So When the player clicks on the country the transparrent object (on top of the map) is the one clicked and an eventlistener acts on the click.
In Tiled I can create all the objects I need, naming them + assigning parameters and other values.
If I add object.alpha value in Tiled, the alpha value is passed on to corona and working there.
How can I read these data from the json/tmx file in Corona and adding them to a lua table?
The way I am thinking to use the Tiled map and its objects, is to create one polyline trace of each country’s border (creating one object per country). Then place each “country traced object” on top of the world.png map, also naming the object with the countrys name like “object.name = TileBritannia” and also the other properties for use in game.
My problem is getting the objects info, like object.name, and an eventlistener reacting to a click on the object.
Is a polyline the right way to create a clickable area on a map, when I use a png file as a background image?
What is the best way to create a country border objects, in one layer or with all countries as individual object layers in Tiled.
Can I create one layer with sub objects and still access them in my code?
How do I get the object name and other properties, set in Tiled.
When I try to use the (local britannia = tiledMap:load("britannia.json")) the "load" is not working, getting a nil value.
I am looking for a code that will extract/get/read the object.name i.e. “objBritannia” or "TileBritannia". from the json/tmx file.
When I try to read the different parameters from the json file, I don't get the result I expect. I get the result = function: 046A73B0, was hoping for an object name of some sort.
Please provide links to or code example.
I have edited the question.
Thanks
For questions 1 and 2: I have not used Tiled, but based on Corona Tiled, you have the right strategy in mind. That page makes me think that you can just use tap event listener to detect tap. If you are having issues with the example on that web page, please update your question to be more specific. If tap event handling doesn't work (maybe you're talking about a different Tiled lib), look a Polygon fill and Point in Polygon detection, because that's basically what you need to do. Try some stuff from there. If it still doesn't work for you, then update your question with specifics otherwise it will be likely get closed (it is a little too broad as it is).
For #3, Lua is a dynamic language that supports adding properties to objects in one line. So upon the example on the Corona Tiled page, all you would have to do is
tiledMap = require("tiled")
local britannia = tiledMap:load("britannia.json")
britannia.name = "Britannnia"
local Zulu = tiledMap:load("zulu.json")
zulu.name = "zulu"
Naturally you will probably have a whole bunch so you will create a function that you call for each tile. It's not clear what map.layer["objBritannia "].nameIs("TileBritannia") is supposed to do so I can't comment.
I'm creating a diagram with D3 and JSON which is based on this:
http://bl.ocks.org/mbostock/4063550
The difference is, I also want to have different shapes for nodes (not just circles, but for example, trianges.)
I have a attribute in the JSON file that says something like "shape":"triangle".
How do I update that index.html file so that I can get different shapes to be displayed?
Really urgently need assistance...any help/advice really appreciated.
Trying modifying this line to be what you want, which is currently drawing a circle:
node.append("circle")
.attr("r", 4.5);
D3 has some built in SVG helpers for drawing symbols: d3.svg.symbol. AS #pfrank suggests, you should be able to append a path instead of a circle and set the d attribute to the output of the symbol helper configured to whatever shape you want.
I am a newbie regarding three.js and I have a problem with imported geometry (js-file from 3dsmax inclusive all material and textures) and the CanvasRenderer. The CanvasRenderer displays the triangle edges of imported geometry, the WebGLRenderer works well.
Canvas example:
http://der-n.square7.ch/threejs/examples/teapot_canvas.html
WebGL example:
http://der-n.square7.ch/threejs/examples/teapot_webgl.html
In the three.js library I have found the option "overdraw: true" for a material to fix this behaviour but obviously the material+textures are defined by the above mentioned exported 3dsmax js-file.
For the tests I use the "misc_camera_trackball" example with small changes (I have added a JSONLoader, changed some camera and trackball parameters, changed some light colors, added a CanvasRenderer)
Any hints how to solve this?
Thanks for your help.
Best regards
Oggy
In the loader callback, you have all of the loaded materials in an array geometry.materials. You could loop over those materials and set the overdraw property to true for each.
As far as I know, THREE.MeshFaceMaterial is just a pass-through material that indicates "faces have an index that points to a material instance to use from the geometry's materials array", so setting properties for MeshFaceMaterial won't have any effect.