I would like to know if it's possible to 'ignore' transparent objects.
The idea is that if I draw over another object, the drawing path will group with the underlying object (this works). Now I want the free drawing path only visible inside the object itself. See picture below for reference.
What I have:
https://pasteboard.co/IqSuu4Y.png
What I would like to have:
https://pasteboard.co/IqSwxfv.png
I was thinking that the 'perPixelTargetFind' options could step in, but I can't get it to work.
Related
I'm using prefab instead of objects. I'm able to apply bounds control's handle style (Hololens 2 style) in Objects But not in prefab which I've created.
Is there any solutions, How can I apply Hololens2's Handle style in prefab ?
enter image description here
You need to save the Configuration in BoundsControl/Visuals as an .asset file for reuse in the prefab. You can also drag the .asset file from Packages/Mixed Reality Toolkit Foundation/SDK/StandardAssets/Profile/BoundsControl/HoloLens2Style_Slate to the Assets folder, modify it to the style you want, and then add it to the BoundsControl component of the prefab.
Let's say I have a button. In it's constructor I use variables to feed the values(before running I set some default values to these variables), so later they can be changed and within the program the look of the GUI can be modified. What I need is to update the widgets whenever I change these values.
For example I have some options to change a certain color, I press the button it calls a certain command defined in the constructor, changes the color variable and after that, it needs to be updated. Here it says the update() redraws widgets as needed. How do I tell it I need the widgets to be redrawn ?
http://effbot.org/tkinterbook/widget.htm
I might be mistaken on what the redrawing actually means. In any case I need it to update with the new values. I have a quite dumb solution for this, that is destroying everything and rebuilding it. I feel like there is a smarter way of doing things.
All widgets have a configure method which can be called to change any of its attributes. All you have to do is keep a reference to the widget(s), and call the method:
def update_the_widgets():
the_label.configure(background="red")
a_button = tk.Button(..., command=update_the_widgets)
the_label = tk.Label(..., background="green")
This is much easier if you use an object oriented style of coding. Otherwise these references need to be global variables.
When your GUI is properly coded you should almost never need to call update.
I have seen how I can place points on a VTK object using seed widget from : http://www.vtk.org/Wiki/VTK/Examples/Cxx/Widgets/vtkSeedWidget
I have also seen how I can rotate an object from : http://www.cmake.org/Wiki/VTK/Examples/Cxx/Qt/SideBySideRenderWindows
I am wondering how I can combine this so I can rotate the object when I drag, and place points when I click
Usually to do something like this you will have to subclass an interactor style (like this: http://www.vtk.org/Wiki/VTK/Examples/Cxx/Interaction/MouseEvents). Then you can store an instance of something like the seed widget in that class, and pass along events to it that you don't want to handle, and handle the ones that you do want to handle (or let the defaults of the style handle them).
I have been trying to find an example or some hints on how to create an app that I could drag, resize, rotate images onto a UIView and then save the individual pieces (including their size, rotation and placement) and the entire UIView into CoreData. Kind of like the omnigraffle app.
Any tutorials, examples or anything on any piece of the app would be greatly appreciated.
for dragging a view
http://www.cocoacontrols.com/platforms/ios/controls/tkdragview
for roting a view http://www.cocoacontrols.com/platforms/ios/controls/ktonefingerrotationgesturerecognizer
for resizing a view
http://www.cocoacontrols.com/platforms/ios/controls/spuserresizableview
What respects to core data, its actually pretty straightforward just, gather the classes in one view, see the properties you need to save, and the new one you will need for your app and thats it.
Like:
Object Canvas containing a many relationship to morphlingViews wich contain all the properties as center, color, width, height, angle, UIPath (if you plan to create custom shapes) layer position (so it gets drawn correctly) and if you plan to connect the views as omnigraffle add a many realtionship to self (in morphlingViews) so you can take the center of different morphlingViews and add a simple line between them. (and a string if you plan to add drawInRect method to allow users to write in the objects, then it will be a good idea to add the text properties as well).
You can also add Quartz Composer drawing styles properties to the object, as shadow, shadowColor, shadowOffset, or add patterColor to add resizable background.
I've a layer with multiple markers with rather big icons, so they overlap. Via the list on the side of the map users can select a marker and the map will pan (and zoom) to it. But it will still be behind some other makers.
How do I get a individual makers z-index and set it? I would be useful to get the highest used z-index and just add one. (another solution is to add the total number of markers to the z-index)
The markers (or features) are in a myLib.features array. The console doesn't show any z-index type functions.
I can't find a appropriate example or api function for this.
EDIT:
I found this example: http://dev.openlayers.org/examples/ordering.html
I don't really understand it. Somehow the created feature takes the next z-index given by the layer via somekind of symbolizer. I have no idea how to work this static sort into a dynamic one.
Try this:
First of all, make sure you are using a OpenLayers.Layer.Vector layer, not a OpenLayers.Layer.Markers layer. Apparently the Markers layer is old news and all new development is done in the Vector layer. It has more features. (I wasted a pile of time with the Markers layer myself).
Then, each of your markers needs to be a OpenLayers.Feature.Vector object. The constructor takes three arguments, the third of which is called the style. The style is where you set your image attributes, the background shadow, the mouse-over text, and the z-index, which has the property name "graphicZIndex". I think that's what you're looking for.
http://dev.openlayers.org/releases/OpenLayers-2.12/doc/apidocs/files/OpenLayers/Feature/Vector-js.html#OpenLayers.Feature.Vector.OpenLayers.Feature.Vector.style
Add your "markers" (which are Vector's) to your Vector layer with the addFeatures function. And just ignore the "options" argument.
http://dev.openlayers.org/releases/OpenLayers-2.12/doc/apidocs/files/OpenLayers/Layer/Vector-js.html#OpenLayers.Layer.Vector.addFeatures
I found that example page too, and I found it confusing too. It was setting all the markers' styles in the Vector layer's constructor (as default values to be used if the marker style was omitted) instead of the marker's constructor. I think it makes more sense to set the marker style in the marker constructor.
To change the style in real-time, take one of your OpenLayers.Feature.Vector markers, called "marker" and do this. And let's call the Vector Layer "layer".
marker.style.graphicZIndex = 13;
layer.redraw();