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I am attempting to split a closed path to sub-paths, the image is of a tree and I want to be able to easily manipulate branches by dividing them from the path between two nodes and then recombining later.I have tried "Break apart" and "Cut Path" but neither work predictably (annoyingly, it worked for one branch but can't get to to work for others!).
Ideally, I want to cut the path at the base of a branch by selecting the nodes on either side at the base of the branch so that I can rotate and translate that branch independently.
Try this:
Select the two nodes at each side of the base of the branch (as shown in your image).
Use the "Break path at selected nodes"-button. It's located in the upper toolbar visible when you press F2.
Now you have two connected paths which you can separate using Path->"Break Apart".
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With v-for I create a list and dragging works in it, but how do I keep the position of the elements on reload?
Tried to use LS but can't figure out how to implement
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How can I change the mouse cursor to something else in c++, Windows? I mean, change the pointer to another system default, for example, the hand icon.
I don't know what code I can provide you, since I don't really have anything for the mouse. The only thing I have for the mouse, that isn't in use, is to hide it. If this helps tell you what I use or anything like that, here:
SDL_ShowCursor (SDL_DISABLE);
My c++ version isn't the newest, so that is something to note.
And hiding the mouse pointer and having a picture follow it isn't something I can do since it uses way too many resources and is slow.
Use SDL_SetCursor If you want a system cursor, you can pass the return value of SDL_CreateSystemCursor to that function. See the documentation:
https://wiki.libsdl.org/SDL_SetCursor
https://wiki.libsdl.org/SDL_CreateSystemCursor
https://web.archive.org/web/20210211163214/https://wiki.libsdl.org/SDL_CreateSystemCursor
The documentation is currently somewhat lacking. The last link refers to the archived documentation, which contains the list of possible values for SDL_CreateSystemCursor
Example:
SDL_Cursor* cursor;
cursor = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_HAND);
SDL_SetCursor(cursor);
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I'm trying to create a game using C++ / SDL / OpenGL and Box2D and I was wondering if I can create objects and save them to use later.
To be more precise, I want to create a map this way :
When I click somewhere in the window, it creates an object of my choice (a wall, a ground, etc..) and it will save it into a file that I can use to display the map.
It would save me much time as I will not have to set the x and y positions, length, rendering and all this shit manually and open debugger each time, then re-adjusting, etc..
So, can I do this and if so, how can I do it ?
This question is insanely vague.
Long answer: YES, you can turn your game into a map editor, there is no "built-in" way to do that. You will have to write all editor/serialization logic yourself. You should use a game engine like Unity or Unreal if you want to achieve this kind of features/Behaviour out of the box.
Short anwser: WHY BOTHER doing so, knowing awesome map editors like "Tiled" exists exactly for this purpose, and lots of binding to read maps exists in numerous languages on github.
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Can anyone explain me, how migration will happened in django?
Actually I want full backend procedure of "./manage.py migrate" command
It was explained once at the "django under the hood" conference by the author. I have a summary of that: http://reinout.vanrees.org/weblog/2014/11/14/2migrations.html
The way it works is by chopping all operations into tiny dependencies. Every individual field that has to be created is turned into a tiny dependency step. After the list of steps is sorted (via the dependency-resolving loop) into the correct list of steps, an optimiser goes through the list and optimises it. If a model gets created and deleted, nothing needs to be done, for instance.
The final part of the puzzle is the graph. It builds a directed graph of all basic migrations in memory. It needs to read all the models on disk for that. It also looks in the database. There’s a table in there that marks which migrations (or rather: nodes in the migration graph) have been applied.
If you want to look at the code, here are some pointers:
django/db/migrations/autodetector.py, start at _detect_changes()
django/db/migrations/optimizer.py, start at reduce()
django/db/migrations/graph.py
django/db/migrations/loader.py
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I have a laptop with a broken 13 inch display. The left half of the display is completely black and I cant's fix it for now. I was wondering if it's possible to write a program in any language to limit the display to the right, that means either:
Changing the resolution to have half of the width it currently has or
Keep the aspect ratio but zoom out the display and send it to the right.
I am preferably looking for a method that can be used in Linux (Windows will be in second priority)
The language is not an issue (though I am assuming C++ would be the way to go) and I'm looking for some hints.
Thanks in advance.
maybe (if xrandr don't make you happy) you could use Xnest, position the Xnest root window appropriately, and run all other X11 applications inside that Xnest.
You can change resolution using xrandr Linux command.