I want to draw a border around the data area of my chart. Therefor I use chart.dataArea().background().stroke() but the stroke is partially hidden behind the background fill color of the data area.
See this playground example:
https://playground.anychart.com/LfsMXtpR
Of course I could just make it thicker, but I want it to be the same thickness all around.
I think the stroke shouldn't be hidden by the background fill.
Thanks ahead.
The reason is that yAxis has greater zIndex then data-area. You can decrease the yAxis zIndex to solve it, check the modified sample.
Related
I'm using CustomPaint to make a custom shape and I want to apply a color gradient but with hard color stops. Without color transitions.
PS:I cannot use different Paints instead of gradient because of the custom shape.
I checked the documentation and couldn't find anything. Is it impossible? Or is there any other workarounds? Thanks!
You could split your custom shape in smaller shapes and give each one its correct color. That would be one way to do it.
I have another idea. You could do it like so: Give the complete canvas of you custom paint a color, the color of your application's background. Give your custom shape Colors.transparent as its color. Then you make as many containers with the colors you want to have and put them below each other so that there overall size matches the size of your custom paint. You stack the custom paint onto these containers using Stack Widget and your custom shape will take the colors of these containers because its color is transparent. While the surrounding of your custom shape will have the color of the background of your application, because the whole custom paint is colored that way.
Okay I figured it out myself, I use Gradient.linear as the shader for custom paint. I noticed that it only blends colors when there is a big gap in stops. So I put my colors and stops like this.
Colors | Stop
Green 0.2
Green 0.201
Blue 0.5
Blue 0.501
Yellow 1
Now the color stops are hard.
Here's a preview of before and after |
I am looking for some general advice and maybe some example code of what I am trying to accomplish if anyone knows of any for an iOS swift project. I would like to either:
A) Make the background, of the blue view, gray and only show a certain percent of the blue area.
OR
B) Overlay the gray area on top of the blue view and just keep making gray area bigger.
What I am trying to do is simulate battery power and show a battery.
I've considered using a progress bar and doing option A, but the blue area is NOT a solid color. Its actually an image. I've tried using an image for the progress bar, but the image needs to keep its dimensions. (Ex: If progress shows 20% it needs to show only 20% of the image or "blue area", but if you use an image as the progress bar it just shrinks the image and still shows 100% of it instead of just the 20% I need to show).
You can easily write a custom self-drawing UIView that will behave in exactly the way you describe. In other words, you tell your UIView a percentage, and it redraws itself with the blue on the left and the gray on the right. You can even draw the darker gray stroke outline shown in your drawings. All easily accomplished in code.
I like being able to lay things out visually and take advantage of autolayout. Here's how I would do this (in a nib/storyboard):
Place a UIView on your canvas and give it the gray background. Give it whatever autolayout constraints are appropriate for you.
Place a UIView inside the one from #1 and give it the blue background. Anchor it's left, top, and bottom to the gray parent view and give it whatever width (doesn't matter).
Add an outlet to that width constraint you made in #2.
Now all you have to do is modify the "constant" property of that width constraint to give you the desired "progress". So if your gray view is 100 wide and you want to present "20%" progress, then just do "yourWidthConstraint.constant = 20".
I am trying to add an orange circle with a number (my number will change depending on certain circumstances) inside it in my WKInterfaceGroup like the image below.
However, it appears you can't change WKInterfaceLabel background color. The only solution I can think of is to add an image behind the label. So how can I achieve this (if it is possible)? Is there another way to make this work?
The easiest way to do this is to:
Put the Label into a Group.
Center Align and Position the layout of the Label
Set the Group to a Fixed Width and Height.
Set the Corner Radius of the Group equal to 1/2 the Width (height should be the same)
Set the Group to Background Color to the color you want.
You could add the label to a WKInterfaceGroup and set its background image property. Or, you can create pre-rendered template images and use setTintColor: to color them.
I have a line of text which I want to display behind a CALayer, and when behind, then the text color should appear in a different color in the overlapping area.
The color of the text is black, and the text color should appear as white on the red layer when they overlap (they may both move around, so this needs to be continuously updated).
How may this be accomplished?
This can’t be done with any blend mode. You’ll need to render the text into the foreground layer in white by hand.
One trick you could try is to keep the white text always visible, but clipped by the layer that moves around using a second layer that also moves, set as the text’s mask.
When rotating a label, the text is rendered very ugly. Is there an convenient way to get the label aligned with the pixels? Maybe there is some way of rounding the transform of the view, so that it isn't misaligned?
If you use CGAffineTransformRotate or a similar function you won't see any artifacts in the text because the label is drawn first and then rotated in its entirety.
If you are seeing artifacts using a transform, then the most likely source is a transparent label background distorting the appearance of the text. If the background is variable, such as pin stripe or a picture, then rotating the text will put different pixels adjacent to the text which can muddle its outline and apparent color.