Databases
StackOverflow2013
Postsdbo
POCorrecting 3D line drawing in C#
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POCorrecting 3D line drawing in C#
    primarykey
    data
    text
    <p>I have (with assistance) created a function that plots and draws a line of blocks within a 3D space. Generally this is performed in a 64x64x64 gridded cube.</p> <p>This is the code I have:</p> <pre><code> internal static int DrawLine(Player theplayer, Byte drawBlock, int x0, int y0, int z0, int x1, int y1, int z1) { int blocks = 0; bool cannotUndo = false; bool detected = false; int dx = x1 - x0; int dy = y1 - y0; int dz = z1 - z0; DrawOneBlock(theplayer, drawBlock, x0, y0, z0, ref blocks, ref cannotUndo); if (Math.Abs(dx) &gt; Math.Abs(dy) &amp;&amp; Math.Abs(dx) &gt; Math.Abs(dz) &amp;&amp; detected == false) { detected = true; float my = (float)dy / (float)dx; float mz = (float)dz / (float)dx; float by = y0 - my * x0; float bz = z0 - mz * x0; dx = (dx &lt; 0) ? -1 : 1; while (x0 != x1) { x0 += dx; DrawOneBlock(theplayer, drawBlock, Convert.ToInt32(x0), Convert.ToInt32(Math.Round(my * x0 + by)), Convert.ToInt32(Math.Round(mz * x0 + bz)), ref blocks, ref cannotUndo); } } if (Math.Abs(dy) &gt; Math.Abs(dz) &amp;&amp; Math.Abs(dy) &gt; Math.Abs(dx) &amp;&amp; detected == false) { detected = true; float mz = (float)dz / (float)dy; float mx = (float)dx / (float)dy; float bz = z0 - mz * y0; float bx = x0 - mx * y0; dy = (dy &lt; 0) ? -1 : 1; while (y0 != y1) { y0 += dy; DrawOneBlock(theplayer, drawBlock, Convert.ToInt32(Math.Round(mx * y0 + bx)), Convert.ToInt32(y0), Convert.ToInt32(Math.Round(mz * y0 + bz)), ref blocks, ref cannotUndo); } } if (detected == false) { detected = true; float mx = (float)dx / (float)dz; float my = (float)dy / (float)dz; float bx = x0 - mx * z0; float by = y0 - my * z0; dz = (dz &lt; 0) ? -1 : 1; while (z0 != z1) { z0 += dz; DrawOneBlock(theplayer, drawBlock, Convert.ToInt32(Math.Round(mx * z0 + bx)), Convert.ToInt32(Math.Round(my * z0 + by)), Convert.ToInt32(z0), ref blocks, ref cannotUndo); } } return blocks; } </code></pre> <p>It should queue up the block drawing and return the number of blocks it has drawn. The problem is that it is not drawing an un-broken line. In certain instances it leaves gaps between the blocks when at the very least all blocks should be connected by their vertices.</p> <p>The only part of the code I struggled with is that I was calculating the largest difference in axis and creating a slope constant. I ran into an issue when trying to do a perfect diagonal line. All values were equal so I just defaulted to the z axis - this is where I believe the issue exists.</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USGabe
    1. USSystemX17
    plurals
    1. PL
      singulars
      1. LTLinked
    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
    1. VO
      singulars
      1. POCorrecting 3D line drawing in C#
      1. USSystemX17
      1. VTFavorite
    2. VO
      singulars
      1. POCorrecting 3D line drawing in C#
      1. USacoolaum
      1. VTFavorite
    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