I am creating a manual layout for a network in Cytoscape version 3.8.2. I would like to be able to define the edge lengths, so the network looks more uniform. Is there a way to define the property edge length?
Specifically, I want something like the below subsection of a network to be a perfect circle.
No, the edge length is not a property in Cytoscape. You would need to calculate it based on the source and target node positions. One way to achieve what you want would be select all of the outer nodes, then do a degree-sorted circular layout, and then drag your central node back into the center.
-- scooter
Related
For the context, I'm working with Capella, an Eclipse RCP application based on Sirius (hence, EMF, GMF and draw2d). This application is used for MBSE, that basically means diagram representations for industrial systems.
I'm developping an add-on (viewpoint) to display custom labels next to diagram elements. These diagram elements are, to put it simply, boxes inside boxes. My problem is that usually the label text is larger than the space between a box and its container, so the label gets hidden. What I need is these labels to always be in foreground. As I'm more used to web development, what I'm looking for would be the equivalent of the z-index CSS property.
Currently I have no idea of how to achieve this, I'm using a custom .odesign that allows me to control some rendering options, like labels text, the color of some elements or to add decoration, but I dont think its the way to go for my problem. Maybe I should use a custom EditPart or a custom StyleConfiguration (I already used these components for other projects) but I have no clue where to start for this issue.
Any leads will be greatly appreciated.
We recently did this kind of changes to keep some labels in Sirius Sequence diagrams always on top: the combined fragments are placed behind the lifelines (z order) but we wanted to keep the labels of the CombinedFragments visible event their bounds intersects Lifelines, Executions or States).
This has been handled in Bug 564239 for Sirius 6.3.2 (used in Capella 1.4.1).
You could find some hints the bugzilla (Gerrits and commits can be retrieved from the See also section).
In Sirius Sequence diagram , we use org.eclipse.sirius.diagram.sequence.ui.tool.internal.layout.SequenceZOrderingRefresher to control the z-order of CombinedFragments : all the figures that composes them comes from some expressions in the odesign, and synchronization with the Capella model for exemple.
But in your case you want to control only the label, so it must not be dealt on the edit par level, but on the figure one. The "overlay" layer and figure lead might be a good one.
Do not forget another thing: in GMF/GEF, the labels of an element is displayed/shown/rendered/visible if it fits to the visible area of the parent container: in the case of a node in a container with scrollbar, the visible are will impact the visibility of the sub nodes (extended to their border nodes, edges, labels, ...)
Regards
Maxime
Is it possible to place a port on a layer so that it is invisible when the layer is not visible?
I could not find an answer in GOJS documentation. I tested with this link template and it did not work.
myDiagram.linkTemplate =
$(CustomLink, // defined below
{ layerName: "blue",...
You can only put Parts in Layers -- either Nodes or Links or Adornments. In other words, you cannot split up a Node so that a piece of it appears in one layer and another piece of the same Node appears in a different layer.
The normal thing to do is to show or hide pieces such as ports, either by changing their visible property or their opacity property. The former causes the node's panels to be remeasured and rearranged; the latter does not. Several samples demonstrate this, including the Flow Chart sample.
I am using Delphi XE3. Now I try to simulate TListView(vsIcon mode) with Virtual TreeView. Is that possible? Basically this is:
(1) A tree with only root nodes. That is easy to implement. Just use the following codeline is OK:
VirtualTreeView1.RootNodeCount := 5;
(2) Hide the tree lines. That is also easy to do, just set toShowRoot option to False can hide all the tree lines for the root nodes.
(3) Each root nodes is displayed with only icon instead of text. That can be implemented with OnGetImageIndex vent together with an image list assigned to the tree view.
(4) There is only one column. That is also easy. By default there is only one column.
(5) The nodes should be tiled from left to right, horizontally, instead of vertically.
The (5) point is the one that I cannot figure out how to implement. I try to do the following researches:
I try to check the TreeOptions and other properties, but cannot find one that support that feature.
I try to search online, and find the following articles:
How to display an icon or image in a column of TVirtualStringTree? (This use multi-column)
Icon position in Virtual Treeview (This does not discuss tiling of nodes horizontally.
Delphi - ListView or similar with owner draw button ( THis also tile the nodes vertically)
I then try to search keyword horizontally in the help document of Virtual TreeView, but what I get are all about how to scroll horizontally, not tile node horizontally.
I think I have tried my best to find a solution but failed. That is the reason why I ask on stackoverflow.
I don't think this is possible, at least Virtual TreeView was never designed to do this. It is a tree control that supports columns.
Is there an optimal layout in JUNG for left-to-right placement of nodes in the graph? I'm looking for something that would model a data lineage and need to represent this somewhat linearly (left to right).
If your graph is a tree, then you can use the TreeLayout and do some post-processing to rotate it to have the root on the left instead of the top (see the L2RTreeLayoutDemo for an example of how to do this).
If your graph is only sort of tree-shaped, then you may want to extract a tree from your graph first (see MinimumSpanningTreeDemo for one way to do this automatically) and then follow the procedure above.
If neither of those works for you (for example, this won't work if your graph has multiple "roots"), then you will probably need to create your own layout, perhaps based on TreeLayout.
I have the following problem with Tikz/Latex:
I have some nodes that contain text. Most text doesn't have letters that reach below the baseline. But for those nodes where it happens, the ratio and placement of node height and text/baseline is off. Have a look at the example image.
Solutions I know of:
make the nodes' minimum height bigger. This results in the nodes being sized the same, but the baseline is still at different heights
use struts. This results in all nodes being laid out like the ones containing the offending text. This results in too much space between the baseline of the text and the surrounding box for most nodes
There's a property for nodes: text depth
One can simply set it to 0pt for the offending (or all) nodes.
Note
Of course this is well documented in the pgfmanual.
This is more of a pointer (can't get TikZ at the moment), but since you are not getting anything else, there are two things to try:
1) There is the $\smash[b]{\text{my text y}}$ (you need amsmath for this).
2) Maybe \raisebox{0pt}[0pt]{my text y} is what you want.