Border alignment artifact - Revision history

Daniel Castaño at 07:33, 13 October 2017

2017-10-13T07:33:59Z

2017-10-13T07:33:26Z

2016-04-15T14:54:20Z

2016-04-15T12:38:24Z

2016-04-15T12:37:49Z

2016-04-15T12:37:32Z

2016-04-15T12:35:59Z

2016-04-15T12:35:46Z

2016-04-15T12:35:26Z

2016-04-15T12:35:14Z

← Older revision		Revision as of 07:33, 13 October 2017
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−	[[File:RotationArtifact.png\|thumb\|center\|~~600px~~\| ~~A screenshot on <tt>dtmshow</tt>~~ ]]	+	[[File:RotationArtifact.png\|thumb\|center\|800px\| Different treatment of corners during rotation ]]

← Older revision		Revision as of 07:33, 13 October 2017
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	subplot(1,2,1);dslices(u1);subplot(1,2,2);dslices(u2);		subplot(1,2,1);dslices(u1);subplot(1,2,2);dslices(u2);
	</pre>		</pre>
		+
		+
		+	[[File:RotationArtifact.png\|thumb\|center\|600px\| A screenshot on <tt>dtmshow</tt> ]]

← Older revision		Revision as of 14:54, 15 April 2016
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	When rotating a cube, the cube representing the rotated particle will have some areas where there is no information.		When rotating a cube, the cube representing the rotated particle will have some areas where there is no information.
		+
		+	As a consequence, a rotated particle appears as showing an "edge". Most ''Dynamo'' programs rotate the volume into an sphere. However, sometimes it is necessary to keep the edges, for instance during [[Fourier compensation during averaging\|fourier compensation during average]]
		+

	See the effect here:		See the effect here:

@@ Line 4: / Line 4: @@
 See the effect here:
-<nowiki>
+<pre>
 u1=dynamo_rot(rand(64,64,64),[45,45,45]); % rotates creating a spherical halo
 u2=dpkgeom.rotation.sharpRot(rand(64,64,64),[45,45,45]); % rotates creating an edge
 figure;
 subplot(1,2,1);dslices(u1);subplot(1,2,2);dslices(u2);
-</nowiki>
+</pre>

@@ Line 5: / Line 5: @@
 <nowiki>
 u1=dynamo_rot(rand(64,64,64),[45,45,45]); % rotates creating a spherical halo
 u2=dpkgeom.rotation.sharpRot(rand(64,64,64),[45,45,45]); % rotates creating an edge
 figure;
 subplot(1,2,1);dslices(u1);subplot(1,2,2);dslices(u2);
 </nowiki>

← Older revision		Revision as of 12:35, 15 April 2016
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	<code>		<code>
		+
	u1=dynamo_rot(rand(64,64,64),[45,45,45]); % rotates creating a spherical halo		u1=dynamo_rot(rand(64,64,64),[45,45,45]); % rotates creating a spherical halo