opacitymask

WPF OpacityMask weird behavior

由 旧时模样 提交于 2021-02-05 11:14:47
问题 I think I might have found a bug in WPF, or maybe I just don't fully understand how OpacityMasks work. As you can see on the first image, I have a diamond shaped path and a red circle. My goal is to make everything outside the diamond invisible. It works when the circle is inside the diamond shape, but whenever I move it to one of the corners, or outside the path, the OpacityMask seems to get stretched or distorted as you can see on the second image. My question is how can I make the

WPF OpacityMask weird behavior

由 泪湿孤枕 提交于 2021-02-05 11:14:30
问题 I think I might have found a bug in WPF, or maybe I just don't fully understand how OpacityMasks work. As you can see on the first image, I have a diamond shaped path and a red circle. My goal is to make everything outside the diamond invisible. It works when the circle is inside the diamond shape, but whenever I move it to one of the corners, or outside the path, the OpacityMask seems to get stretched or distorted as you can see on the second image. My question is how can I make the

Can not create OpacityMask from Byte[]

由 我的未来我决定 提交于 2020-01-06 18:03:44
问题 I have a rectange which I want to set an OpacityMask for. I tried it directly from a PNG Image, which was working. But since my image comes from a Database later, I tried saving the PNG into an array first, and then restoring the BitmapImage from it. This is what I have now: bodenbitmap = new BitmapImage(); bodenbitmap.BeginInit(); bodenbitmap.UriSource = new Uri(@"C:\bla\plan.png", UriKind.Relative); bodenbitmap.EndInit(); PngBitmapEncoder enc = new PngBitmapEncoder(); enc.Frames.Add

“Disabling” an HTML table with Javascript

由 牧云@^-^@ 提交于 2020-01-01 02:34:49
问题 I've seen this done in a lot of sites recently, but can't seem to track one down. Essentially I want to "disable" an entire panel (that's in the form on an HTML table) when a button is clicked. By disable I mean I don't want the form elements within the table to be usable and I want the table to sort of fade out. I've been able to accomplish this by putting a "veil" over the table with an absolutely positioned div that has a white background with a low opacity (so you can see the table behind

WPF GroupBox Header Customization

由 若如初见. 提交于 2019-12-30 11:23:27
问题 I have edited the standard GroupBox template as I wanted to customize it. Apart from other customizations, I wanted the GroupBox header to be Horizantally aligned in the Center instead of Left or Right. The alignment of the Header is not a problem however, the real problem is the OpacityMask defined for the Border controls. The opacity mask sets the transparent space behind the groupbox header where the borders are not drawn. I haven't able to figure it out how to place the transparent space

Google Map V3 .png groundoverlay opacity

由 这一生的挚爱 提交于 2019-12-29 07:12:13
问题 I have created my first Google Map API with png overlays (thanks to @andresf for assistance). This map has multiple png ground overlays adjacent to each other and can be seen at http://www.earthstation.mobi/coverage.htm Question: How do I set the opacity (transparency?) on each overlay so that I can see the map detail under the overlay? I do not need to adjust this from the webpage, a preset coded into the script will suffice. The code of the page listed above is: <!DOCTYPE html "-//W3C//DTD

Opposite for OpacityMask

由 烈酒焚心 提交于 2019-12-11 02:28:42
问题 It masks the source item with another item, so the source is visible only where the mask is opaque. How to make source visible only where the mask is transparent? Currently it's done with a shader, but I want to replace that. Can't invert the mask, because it consists of multiple images: the sum of individually inverted images is not the same as the inversion of the sum. 回答1: There is no component made by Qt that can do what you need. OpacityMask is closest to what you need. You can view its

Animation: Making an image gradiently appear from side to side (in opacity)(so called “soft-wipe” effect)

由 吃可爱长大的小学妹 提交于 2019-12-10 17:47:43
问题 Sorry if the title is confusing. I've tried my best to compose it, if you are going to understand what I am asking, feel free to suggest better title in comment. The animation I am trying to make can easily be done by video editors, but looks to me not so easy with CSS/JS: First of all, I am not talking about sliding in the image, the image is not moving at all. I want it to appear from side to side, but in a gradient transparent manner. Imagine there is a gradient opacity mask on the image,

Clipping a border in WPF

由 别来无恙 提交于 2019-12-09 12:22:32
问题 I need to create a round ProgressBar template. ControlTemplate : <ControlTemplate TargetType="{x:Type ProgressBar}"> <Grid x:Name="TemplateRoot" SnapsToDevicePixels="true"> <Rectangle x:Name="PART_Track" Margin="1" Fill="White" /> <Border x:Name="PART_Indicator" HorizontalAlignment="Left" Margin="1" > <Grid x:Name="Foreground" > <Rectangle x:Name="Indicator" Fill="{TemplateBinding Background}" /> <Grid x:Name="Animation" ClipToBounds="true" > <Rectangle x:Name="PART_GlowRect" Fill="#FF86C7EB"

Clipping a border in WPF

由 不羁岁月 提交于 2019-12-03 14:21:07
I need to create a round ProgressBar template. ControlTemplate : <ControlTemplate TargetType="{x:Type ProgressBar}"> <Grid x:Name="TemplateRoot" SnapsToDevicePixels="true"> <Rectangle x:Name="PART_Track" Margin="1" Fill="White" /> <Border x:Name="PART_Indicator" HorizontalAlignment="Left" Margin="1" > <Grid x:Name="Foreground" > <Rectangle x:Name="Indicator" Fill="{TemplateBinding Background}" /> <Grid x:Name="Animation" ClipToBounds="true" > <Rectangle x:Name="PART_GlowRect" Fill="#FF86C7EB" HorizontalAlignment="Left" Margin="-100,0,0,0" Width="100"/> </Grid> </Grid> </Border> <Border x:Name=
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