ShapeMaker - by the Dwarf Horde (Jan 30th, 2016)

[TechnoRobbo]

Copy Path Stream and post - that way I can see the coordinates

[Eli]

Is this what you need?

 

M 10,10 L 250,490,490,10 Q 250,230,10,10

[TechnoRobbo]

yes

[TechnoRobbo]

Yeah I see it it appears to be a windows rounding error when it strokes a path. Change the brush size to 1 and the Rounding error disappears.

 

Post Edit - Confirmed this happens with other software (KAXAML) -Windows GDI+ bug.

 

If you have KAXAML try this and the same effect is evident. 

<Page
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
   <Canvas Width="1000">
      <Path
         Width="800"
         Height="600"
         Canvas.Left="0"
         Canvas.Top="0"
         Data="M 10,10 L 250,490,490,10 Q 250,230,10,10"
          StrokeThickness ="3"
         Fill ="#FF999999"
         Stroke="#FF000000"
         Stretch=" None"/>
   </Canvas>
</Page>

Post Edit - With the Brush size as 1 effect diminishes but doesn't disappear.

[Eli]

You are right. When I increase the brush size to 20 looks even worst.

-----------

Sorry TR but I am alergic to code  .

-----------

BoltBait has a Zolution.

 

Can this be integrated to the effect?

Edited September 6, 2015 by Eli

[BoltBait]

You can fix it by putting a Z at the end of the shape.

<Page
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
   <Canvas Width="1000">
      <Path
         Width="800"
         Height="600"
         Canvas.Left="0"
         Canvas.Top="0"
         Data="M 10,10 L 250,490,490,10 Q 250,230,10,10 Z"
          StrokeThickness ="3"
         Fill ="#FF999999"
         Stroke="#FF000000"
         Stretch=" None"/>
   </Canvas>
</Page>

[TechnoRobbo]

If you rearrange the order it reverses the effect. So .....Clone the line and move it and sandwhich the curve and it finishes both sides to the end.

 

 

[BoltBait]

Windows GDI+ bug.

Nope. This is a bug in how the shape is designed.

 

BoltBait has a Zolution.

 

Can this be integrated to the effect?

The reason this works is that the way you originally designed the shape, the renderer doesn't know that the curve should attach to the first point. The Z causes the curve shape to attach to the line shape. Now that the renderer knows the shapes are attached the proper connection is drawn.

TR's solution also works as well. By drawing your shape starting at the bottom point it forces the curve and line to be joined. Of course, then the tip won't be drawn correctly unless you add a Z again.

[Eli]

TR's workaround works but I think it would be best to let the effect add the Zolution to the shape.

[TechnoRobbo]

TR's workaround works but I think it would be best to let the effect add the Zolution to the shape.

 

Z is already defined to individual Paths. That's the "Closed Path" button. The reason it wasn't included as a separate command for a group of Paths is because the Paths can be rearranged and regrouped and the "Z" relationship would change. This would have added a level of confusion. The question is how often would this "Group Z" be required?

[Rick Brewster]

Post Edit - Confirmed this happens with other software (KAXAML) -Windows GDI+ bug.

 

You mean WPF?  

[Eli]

I just think that can be frustrating designing a shape if there is an order to follow when drawing paths.

[TechnoRobbo]

That's exactly why it was omitted. The order would be critical. You couldn't add shapes with in shapes easily and deleting paths would have unexpected effects.

I do mean WPF

[midora]

IMHO the main confusion is because XAML uses the path definition of SVG and adds its own specification around. The path in SVG (and therefore XAML) consists of subpaths defined by M and Z markers. Each subpath can be open or closed. This definition is important to use the fillmode (evenodd or nonzero) in the right way. Grouping of paths is different.

[TechnoRobbo]

I actually mixed up lines and paths in my explanation. I meant to say lines can be rearranged.

[Eli]

I do not know how but I broke the tip of my arrow head. I started drawing from the bottom counterclockwise, I sandwiched the cuadratic Beziers between the two lines and this is what I got... I think I am missing something.

[TechnoRobbo]

Just continue the line to the next corner or manually add the Z. Those are 2 line ends. I will add a method to manually add an unsafe Z but not until the next revision. 

[Eli]

Ouff... I did it. Thanks TR. I kept rearranging the lines and everytime I managed to put two or more line ends together. I wish there was something that would diferenciate the beginning from the end of a line. (Now that I have my glasses it seems that the beginning is a dark green circle, I am not sure... It is hard to see even when I zoom it)

[TechnoRobbo]

Yes it's a Green Circle, Try increasing your DPI a little  if you have trouble seeling

[Eli]

I am glad that I am not the only one to have this type of problem ( I was about to go nuts). All of these shapes have it as well:

Edited September 8, 2015 by Eli

[Ego Eram Reputo]

That's a feature (not a bug) in my rocket

[Eli]

It is a bad design. You are going to encounter air ressistance.

Edited September 8, 2015 by Eli

[Ego Eram Reputo]

Not in space you're not

[TechnoRobbo]

Shapemaker 

Version 1.2.0+

 

Ready for download

 

Version 1.2.0+ adds

 

Updated Manuals

New Grid for easier alignment.

Cubic Spline Macro Button

 Close Individual Path & Close Contiguous Paths 

2 new WYSIWYG handle markers:

Triangle marker forcontiguous lines link

Box marker for Paths closure

Path List prefixes:

"Z"  and "MZ" indications for Close Path

Node (nub) and Path count in Status Bar

4X & 8X Zoom

[Red ochre]

Some very useful improvements in this version - cubic splines are great and closing paths is much easier.
Thanks Rick for the splines and many thanks TR for all the extra work implementing the many changes!