Databases
StackOverflow2013
Postsdbo
POFlex: Create custom stroke on LineSeries?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POFlex: Create custom stroke on LineSeries?
    primarykey
    data
    text
    <p>You can easily set a stroke on a line series like this:</p> <pre><code>&lt;mx:LineSeries yField="apple"&gt; &lt;mx:lineStroke&gt; &lt;mx:Stroke color="0x6699FF" weight="4" alpha=".8" /&gt; &lt;/mx:lineStroke&gt; &lt;/mx:LineSeries&gt; </code></pre> <p>This will set alpha for the entire stroke to .8</p> <p>But I want to be able to set a different alpha on the stoke for each plot based on something in the dataProvider.</p> <p>For example the <code>yField</code> in the lineSeries is "Apple" which is how it knows where to plot for the lineSeries. I want to be able to add something like <code>alphaField</code> which tells it what to set the stroke alpha for each plot.</p> <p>so if my dataProvider was:</p> <pre><code>&lt;result month="Jan-04"&gt; &lt;apple&gt;81768&lt;/apple&gt; &lt;alpha&gt;1&lt;/alpha&gt; &lt;/result&gt; &lt;result month="Feb-04"&gt; &lt;apple&gt;51156&lt;/apple&gt; &lt;alpha&gt;1&lt;/alpha&gt; &lt;/result&gt; &lt;result month="Mar-04"&gt; &lt;apple&gt;51156&lt;/apple&gt; &lt;alpha&gt;.5&lt;/alpha&gt; &lt;/result&gt; </code></pre> <p>And I set <code>alphaField="alpha"</code> then I would have a solid stroke from plot 0 to plot 1 and then a 50% alpha stroke from plot 1 to plot 2.</p> <p>How can I do this??? I am looking in the commitProperties() and updateDisplayList() methods of LineSeries and have no idea what would need to be added/changed to make this?</p> <p>I am pretty sure, this class has to use Graphics.lineTo() to draw each plot, so basically it would need to "get" the current alphaField value somehow, and apply a Graphics.lineStyle() with the correct alpha before drawing each line. </p> <p>Thanks!!</p> <hr> <p><strong>UPDATE</strong></p> <p>I have gotten much closer to my answer.</p> <p>When I extend LineRenderer I override updateDisplayList() which calls GraphicsUtilities.drawPolyLine()</p> <p>I extend GraphicsUtilities and override the method drawPolyLine() as this is where the line is actually drawn.</p> <p>I can call lineStyle() in here and change the alpha of the line...</p> <p><strong>I still have 1 thing I cannot figure out, from within the drawPolyLine() method how can I access that data that dictates what the alpha should be?</strong></p> <p>Thanks!!!!</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USJD Isaacks
    1. USJD Isaacks
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POFlex: Create custom stroke on LineSeries?
      1. USJD Isaacks
      1. VTBountyStart
    2. VO
      singulars
      1. POFlex: Create custom stroke on LineSeries?
      1. This table or related slice is empty.
      1. VTBountyClose
    3. VO
      singulars
      1. POFlex: Create custom stroke on LineSeries?
      1. This table or related slice is empty.
      1. VTUpMod
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload