Change the origin of the canvas - coordinates

I'm developing a mapping software. Coordinates are plotted with respect to some point (origin) inside the canvas, not the default origin, so the canvas is divided into four quadrants. The mouse hovers over the canvas and the labels are updated to show the current mouse position inside the canvas of course with appropiate signs of the coordinates. So basically the trick is to change the origin and assign it to some point in the canvas
Can anyone please help me how to do this. Any suggestion would be much appreciated.
Cheers!

Assuming you're talking about the Win32 API, SetViewportOrgEx is what you're looking for.

Related

google_maps_flutter, how not to start image from bottom

google_maps_flutter, how not to start image from bottom?
By default, the marker appears directly above the coordinates,(LatLng) so it seems like Google has made it this way, but I am currently making a custom marker and I want this position to be in the center, not directly above the coordinates. It's probably related to the render object key, but I want to edit it myself. On which page can I edit it?
Does anybody knows this issue??
(If that coordinate is a point. Make sure the dot is in the middle of the marker, not the bottom of the marker.)
I think this is the similar issue
How to center the camera so that marker is at the bottom of screen? (Google map api V2 Android)

How do I keep Canvas and non-Canvas objects close to each other?

I've got a board with checkers. The board is a mere container. The squares and the pieces are separate objects with a SpriteRenderer component and corresponding Square and Checker components.
I want to create an information window to the right of the board, containing players' names, their ratings, their time limits etc.
Lichess.com has a similar system:
The crux of the issue is there's some text in this window. I mean UI-Text. Thus, the window must be in a Canvas. However, if I make it a canvas, when changing screen aspect ratio, it moves onto or away from the board.
How do I "glue" the info window to the board?
Take var point = SpriteRenderer.bounds.max of the board (rop-right point)
Then use that point in var position = Camera.Main.WorldToScreenPoint(point) method to translate that position to the canvas
Set position to the panel you want to glue to the board
hint: to decide what part to glue to that point use RectTransofrm.pivot
example in the picture
Taking the canvas to world space doesn't solve the problem exactly?
Like the attached picture. => enter image description here

Unity UI screen size issue

I'm quite new to Unity, so I'm sorry if this is a basic question. I've been trying to set up the UI for a mobile game, but I'm not quite sure how to make the UI lock it's position, no matter the screen size. I've tried using anchors (though I don't fully understand how to use them properly), I've tried using a canvas scaler, I've looked at the Unity document and I just can't seem to find an answer. The buttons are off screen/half off the screen when I build the game to my device/switch screen sizes in the game view. Does anyone know how to fix this?
You can set your anchor point by selecting the UI object (such as a button) and then clicking here and selecting the right anchor point. You can also press down shift to set the pivot and/or alt to move the object to that point at the same time. The object should now be anchored to that point and keep its position even if the resolution is changed. You can set a precise position from the inspector, too. Simply adjust the Pos X and Pos Y variables. It will still adhere to the anchor point.
Note that you might have to play around with the Canvas object's UI Scale mode and its settings to get the right setup.

Unity: Positioning an element on canvas

I need to move an image down through canvas so that its central point would be where is now its top edge. It makes some 50 points, but if I decrease y by 50, it moves to different part of the screen on devices with different screen size. I guess, it's because my main canvas is set to scale with the screen size. So I suppose I need to manually divide the number 50 by my screen height and then code to multiply by Screen.height? Isn't there a more convenient way to move UI objects?
Allow me a second question: Do you think it is even wise to make a game purely on canvas? My game is simple 2D, only slightly animated and contains many layout elements, so I decided to go for it, but I have hard time to grasp the UI position rules.
you may have the problem of the anchoring.
Unity UI totally depends on the Anchoring, if you have got right anchoring there is no issue.
For example. if you anchored something at the Center than changing left and right value moves them according to the center anchor.
for clear visualization, you can paste a screenshot of the behavior.

NGUI can't bring sprite to front in Unity

I have a sprite widget in NGUI, and It can't be brought to front what ever the depth I change in the editor:
Note that the orange panel is a scroll view of NGUI.
Here is the inspector setting of the sprite that I want to set to the very front:
And here is the inspector setting that has overlapped the above sprite that I want to make front of it.
And here is the BottomPanel setting
I finally solve this problem by
Add another panel
Setting the added panel in front the origin one
Make the sprite child of the newly added panel
And the final hierarchy is like this:
And this link of NGUI forum helps
quoted here:
"Depth" property is used to determine the drawing order of the widgets within the same panel that use the same atlas. If you are using different atlases or labels using a dynamic font, bring the widgets forward on the transform's Z, moving them closer to the camera (-Z). If you are using different panels, adjust the transform of the panel you want to bring in front to a lower negative Z value (-Z). I highly recommend sticking to one atlas if you can manage it, it will make your life significantly easier.
And I make a youtube video to explain what I have achieved so far.
Everything looks fine to me but it doesn't seem to work for you. There is another workaround.
On the UIPanel, change the Render Q to Explicit then use z-axis to sort your UISprite. I mean the z position (P) not (R) or (S)
For example, change the z-axis of the "Sprite (1)" object to be 2 then change the z-axis of the "background" object to 1. If this does not work, change the values around.
Please make sure that the Sprite is under the panel.