How to draw plus and minus signs in using data property in Path object.
This is my triangle path object. I need to change it to plus symbol.
<Path x:Name="trianglePath" Data="M 0 8 H 12 V 15 Z"/>
Here, I've created a plus and minus sign which is 10 x 10 pixels using XAML path markup syntax:
<Path Margin="10" Stroke="White" Data="M0,5 H10 M5,5 V10Z" StrokeThickness="2" Height="10" Width="10" />
<Path Margin="10" Stroke="White" Data="M0,5 H10" StrokeThickness="2" Height="10" Width="10" />
When experimenting with designing your path drawing, it's helpful to set the path element's height & width first. To better understand XAML path markup syntax, see MSDN.
You might find it easier if you draw them out on a piece of graph paper and then label the vertices with the values needed to reach it from the previous one.
Then copy this into your code.
Related
If I have a rather meandering Path in my WPF app, is there a way I can make it appear as two differently-colored Paths of identical widths side-by-side? I'd rather not try to hand-code the whole thing again with slightly different values. I thought of using a Brush, but the list of Brushes doesn't appear to have one such.
Edit: I want a Path divided sharply by color, even if it curves, like this:
Made a little search, and found that also :
Two-color Path object
Timwi answer :
<StackPanel Orientation="Horizontal">
<StackPanel.LayoutTransform>
<ScaleTransform CenterX="0" CenterY="0" ScaleX="15" ScaleY="15" />
</StackPanel.LayoutTransform>
<Grid Margin="-5,0,0,0">
<Path Fill="Blue" Stroke="Transparent">
<Path.Data>
<PathGeometry>M10,10 C20,10 10,20 20,20 L20,19 C11,19 21,9 10,9</PathGeometry>
<!-- |← original path →| |← generated part →| -->
</Path.Data>
</Path>
<Path Fill="Red" Stroke="Transparent">
<Path.Data>
<PathGeometry>M10,10 C20,10 10,20 20,20 L20,21 C9,21 19,11 10,11</PathGeometry>
<!-- |← original path →| |← generated part →| -->
</Path.Data>
</Path>
</Grid>
</StackPanel>
So "playing" with margin may be much easier that the other options I told you about for what you need.
DropShadowEffect solved my issue.
I'm working on a WPF application. Given a geometry string path, such as:
F1 M 27,18L 23,26L 33,30L 24,38L 33,46L 23,50L 27,58L 45,58L 55,38L 45,18L 27,18 Z
Is it possible to scale the drawing to a width and height (no matter how small/large the original was) while keeping the figure as a whole, and then finally return the string path representation of the new scaled figure?
There is no need to scale the values in a path geometry string. Just put it in the Data property of a Path control and set its Width, Height and Stretch properties as needed:
<Path Data="F1 M27,18 L23,26 33,30 24,38 33,46 23,50 27,58 45,58 55,38 45,18 27,18 Z"
Width="100" Height="100" Stretch="Uniform" Fill="Black"/>
Yes you can do it! The only thing you need to do, is to use a Viewbox for wrapping the item. This is a sample with a code that I had done, in this case I used the geometry as a DrawingBrush
...
<UserControl.Resources>
<DrawingBrush x:Key="Field" Stretch="Uniform">
<DrawingBrush.Drawing>
<DrawingGroup>
<GeometryDrawing Brush="{StaticResource FieldGrassBrush}" Geometry="F1 M 91.733,119.946C 92.8352,122.738 93.9374,125.529 92.9241,129.209C 91.9107,132.889 88.7819,137.458 84.4263,139.271C 80.0707,141.084 74.4885,140.142 70.8885,137.982C 67.2885,135.822 65.6707,132.444 65.1819,129.182C 64.693,125.92 65.333,122.773 65.973,119.626L 0.16,53.9203C 0.444319,53.4758 0.728638,53.0312 3.48413,48.7023C 6.23962,44.3733 11.4663,36.16 18.5596,28C 25.653,19.84 34.613,11.7333
........
</DrawingGroup>
</DrawingBrush.Drawing>
</DrawingBrush>
</UserControl.Resources>
...
Then the View Box (Note that the Grid has fixed Height and Width, but it will be stretched to the Viewbox's size, in this case, in an uniform way):
...
<Viewbox Stretch="Uniform" Grid.Row="2" Grid.ColumnSpan="2">
<Grid Height="300" Width="390">
<Rectangle Fill="{DynamicResource Field}" StrokeThickness="0"/>
...
I have a drawing with <Path> element. It contains dificult Data attribute so how I can show part of this path.
There are certainly several ways to do this. A very easy one would be to put the Path in a Canvas, set its position inside the Canvas and clip it by the Canvas' bounds:
<Canvas Width="80" Height="60" ClipToBounds="True">
<Path Canvas.Left="-10" Canvas.Top="-10" Data="M0,0 L100,0 100,100 Z"
Stroke="Black" StrokeThickness="2" Fill="AliceBlue"/>
</Canvas>
make use of Blend tool for this where if you copy the data attribute for the path, you could see how it is generated.
It would make your job easier to modify the path as well see the data generation at the same time.
I have the following path. The data is from some data file:
<Path StrokeThickness="5" Stroke="Black" Fill="Yellow" Data="M 30330.8847248349,-37724.909002528 L 28556.3829935257,-37596.5557453925 28031.7660050946,-38008.0608378072 27746.4689258268,-38895.6687979239 27655.7148993139,-39397.1764657993 27718.5888966473,-39755.4955438608 27628.0246979519,-40621.440862981 28514.7500540091,-41208.8847446069 29093.8320242864,-40459.5872073251 29768.3831435369,-40107.7166927063 30092.4525793664,-39483.6045857995 30784.2658266352,-38627.7070622611 30811.846313938,-38537.1499823241 30358.6906348136,-37734.2759127391 30330.8847248349,-37724.909002528" />
I like to know what this looks like, so I want to render it in Kaxaml or XamlPad. Is there an easy way to resize this path so it will render nicely centered on the screen?
Just set the path's stretch attribute to Uniform to maitain the apsect ratio and you should be able to see it in KaXaml
<Path Stretch="Uniform" StrokeThickness="5" Stroke="Black" Fill="Yellow" Data="M 30330.8847248349,-37724.909002528 L 28556.3829935257,-37596.5557453925 28031.7660050946,-38008.0608378072 27746.4689258268,-38895.6687979239 27655.7148993139,-39397.1764657993 27718.5888966473,-39755.4955438608 27628.0246979519,-40621.440862981 28514.7500540091,-41208.8847446069 29093.8320242864,-40459.5872073251 29768.3831435369,-40107.7166927063 30092.4525793664,-39483.6045857995 30784.2658266352,-38627.7070622611 30811.846313938,-38537.1499823241 30358.6906348136,-37734.2759127391 30330.8847248349,-37724.909002528" />
I want to create some up and down buttons using the standard button
background but with black arrows.
What is the best way to accomplish this with WPF??
Malcolm
I find Marlett (a font built into Windows) handy for that sort of thing.
<Button FontFamily="Marlett" FontSize="20" Content="5"/>
<Button FontFamily="Marlett" FontSize="20" Content="6"/>
Output:
No discussion on this subject would be complete without mentioning the geometry mini-language (or Path Markup Syntax) for a more compact shape definition:-
<Button>
<Path Fill="Black" Data="M 0 6 L 12 6 L 6 0 Z"/>
</Button>
<Button>
<Path Fill="Black" Data="M 0 0 L 6 6 L 12 0 Z"/>
</Button>
The first describes a Move to 0,6 Line to 12,6 Line to 6,0 and then close the shape (Z).
There is also a curve syntax.
The preferred way to do this now is using Segoe UI Symbol. It replaces Marlett and provides many useful glyphs.
Up and down would be
<Button FontFamily="Segoe UI Symbol" Content=""/>
<Button FontFamily="Segoe UI Symbol" Content=""/>
Which renders as:
This font is pre-installed on all versions of Windows 7 and 8.
As of the release of Windows 10, the Segoe UI Symbol font is considered a legacy resource and should be replaced by Segoe MDL2 Assets in all new projects as outlined here.
You can create a Polygon which represents your up and down triangles and then set them to be the content of the buttons:
<Button>
<Polygon
Points="300,200 450,200 375,300 300,200"
Stroke="Black">
<Polygon.Fill>
<SolidColorBrush Color="Black" />
</Polygon.Fill>
</Polygon>
</Button>
You can tweak these to draw different figured, but that's generally the XAML you would use for basic geometry.
If you would like to have an arrow with base rectangle you can use this sample...
<Button >
<Polygon Stretch="Fill" Fill="Black" Points="0,0 0,30 0,10 30,10 30,-10 45,10 30,30 30,20 0,20 0,0 30,0 30,10 0,10" />
</Button>