Line, Node Layout algorithms

Does flex provide any support for layouts. Say I have a
couple of nodes connected by lines. Can flex automatically draw
these using some built-in layouts like orthogonal, hierarchial
etc., or on some criteria that causes a minimal number of line
intersections etc.,
There are third party libraries that do these layouts for
Java swing applications. I am looking for similar support in flex.

hi,
take a look at http://www.yworks.com/ - they have a very good java graph drawing library, which can create automatic layouts (among which are sugiyama styles and related styles)
you may download an evaluation version, or use the free online graph editor yEd (using webstart) which demonstrates a lot of the available layouts. Additionally, they have a nice gallery of graph drawings and automatic layouts on their site... go see it
greetings, sebastian

Similar Messages

Removing Blank Space (line) Accompanying Layout Breaks

I've used a layout break to make a portion of text two-column after a one-column section. Whatever I do, whereever I put it, the layout break takes space. It's a farily tight document, in a 10pt. font, and the line the layout break takes screws up the layout of the whole page. How can I get it to not put a whole blank line between the one-column section and the two-column section?

I might not fully understand the problem but take the paragraph break off the end of the line on the first section:
vs

Cl_gui_alv_tree node layout not working!

Hi guys!
I have the following situation.
I use a Tree, and an Item layout. All setting in the node_layout don't work,
With the item layout i set a specific item.
When I set this icon, i still have the "folder" icon of the node layout in my tree, so i have two displayed items.
Thats why i tried to set the icon of the node layout to the "dummy_icon"
however, all settings i try with the node layout didn't work. If I set an icon into the node layout EXP_IMAGE or N_IMAGE it doesn't work as well.
ls_item_layout-fieldname = gd_tree->c_hierarchy_column_name.
ls_item_layout-style     = cl_gui_column_tree=>style_default.
ld_node_text             = ls_equnr.
ls_node_layout-N_IMAGE = 'ICON_DUMMY' "doesn't work
ls_node_layout-EXP_IMAGE = 'ICON_DUMMY' "doesn't work
ls_node_layout-isfolder = ' '   "doesn't work
APPEND ls_item_layout TO lt_item_layout.
* Add node
CALL METHOD gd_tree->add_node
    EXPORTING
      i_relat_node_key = p_relate_key
      i_relationship   = cl_gui_column_tree=>relat_last_child
      i_node_text      = ld_node_text
      is_outtab_line   = ps_equi
      it_item_layout   = lt_item_layout
      is_node_layout   = ls_node_layout
    IMPORTING
      e_new_node_key   = p_node_key.

Hi,
Check this demo program BCALV_TREE_06. You can find the soluition.

Code of line in layout of script

Hi
can anybody tell me the exact code of printing a line in layout of sap script ?

call function 'WRITE_FORM'
           EXPORTING
                element = element
           EXCEPTIONS
                element = 1
                window = 2.
where element is the name of the elemnt in your sap script.
The element should have the variables in &var&.
These variables shoudl be decalrd in your calling program

Config line item layouts for Clear transaction

hi all,
can anyone tell me how I can config these codes
Current line item layouts for Clear transaction F-32, menu Settings/ line layout:
A1     Allocation / document number
K1     Document number
K2     Reference no.
K3     Account number
K4     Account number / company code
K5     Company code
K6     Payment order
K7     Bill of exchange payment request
SA     Order
SB     Purchasing document
SP     Project
T1     Original document number
Z01     Account / Allocation
Z02     A/P - Open invoices
Z03     WBS Element
Z04     Network
ZK2     Ref. / Alloc. / Document / Reason C
thanks alot!
Tram Nguyen

Hi,
In IMG (transaction SPRO) under
Financial Accounting -> Accounts Receivable and Accounts Payable -> Business Transactions -> Incoming Payments -> Manual Incoming Payments -> Make Settings for Processing Open Items -> Define Line Layout
Here you determine which information is to be made available on the screen when processing line items (for example, document type, document number, account number, company code).
Regards,
Srilatha.

3D Graph Layout Algorithms?

Hello there! I'm developing a project for my first computer science thesis at the university of Bari, Italy. This project consists in a OpenGL graph visualization tool but I'm having trouble in implementing a correct layout algorithm.
The problem is that I have been unable to find any information regarding the actual algorithms.. all I've discovered is that there are many commercial products out there that implement these algorithms.. :) I need to know how to implement them myself!
I have a set of spheres (and the x-y-z coordinates of their center), and a set of edges which describe the various connection between those spheres. I'm currently using a sort of very simple spring embedder algorithm which works in this way:
Phase 1:
get sphere 1 (s1)
get sphere 2 (s2)
check s1 against all other spheres
if their euclidean distance is too small they are moved farther away in this way:
if (s1.x < s2.x)
s1.x -= delta
s2.x += delta
if (s1.y < s2.y)
s1.y -= delta
and so on. This is the only way to avoid collisions between spheres that I thought of, since they are not puntiform in fact they have a certain radious. Then in phase 2 I iterate between all the edges and if two connected spheres are too distant from each other they are moved nearer in a way like the one described above. But it doesn't seem to work as it should in fact this algorithm seems to lock the spheres after a number of iteration but rarely produces pleasing visual configurations.
So could anyone please point me in the right direction? What kind of algorithm could I use? A description would be very useful.. Thanks in advance!

Hi, I am coauthor and developer of some of the spring-embedder algorithms used in the Java graph layout library 'yFiles' (we call them 'organic layout algorithms'). Some of the algorithms actually work in 3D and all of them can be adapted very easily to run in 3D. We are using combinations and variants and enhanced versions of some of the following algorithms, as well as some of our own, but for a starter this should be enough information for you:
google for 'GRIP layout' 'GUIDE layout', Kamada-Kawai, Fruchterman-Reingold, Eigenvalue graph layout, GEM spring embedder,
Implementing those algorithms well can lead to very nice results: feel free to take a look at our gallery of graph layouts:
http://www.yworks.com/en/products_yfiles_practicalinfo_gallery.htm
Regards, and a happy new year, Sebastian

Declutter layout algorithm

Hi all you algorithm gurus - I'm looking for ideas for an algorithm to solve the following problem. It's specifically meant to "spread out" or "declutter" the overlapping vertices in a graph visualization system, but I'll state it in more general terms.
In a rectangular area of the screen there are n rectangles. Each rectangle has a location (the (x,y) coordinate of upper-left corner) a width and a height. Some of the rectangles may overlap each other. The declutter layout algorithm should translate the vertices from their original locations, such that after translation no vertices overlap. The algorithm should also try to minimize the translation distance of each rectangle, so the user does not lose all context.
Any ideas? Sounds similar to a spring embedded layout algorithm, or some kind of repellent force algorithm, except we're not concerned about connectedness of vertices. Just need to spread out the overlapping ones.

Any ideas? Sounds similar to a spring embedded
layout algorithm, or some kind of repellent force
algorithm, except we're not concerned about
connectedness of vertices. Just need to spread out
the overlapping ones.I think a good way to start thinking of algorithms is to consider how you would do this manually. In this case, I would probably start at the top left-corner rectangle, find elements overlap it, and move those away in along the axis of their greatest linear overlap. Then recurse on those rectangles.
Now if the relative position of the elements is unimportant, you can use a bin packing algorithm and rerrange all the elements.

Root-Node + Child -Node +Line-Node

How can I implement with alv-tree the following requirement:
Root-Node -> Customer-Nr
Child -Node -> Range
Line-Node -> Datas
Regards
Ilhan

refer Tcode DWDM
or
refer link
http://www.sapdevelopment.co.uk/reporting/alvhome.htm
reward if useful.

Layout algorithms

hi there,
are there any examples of layout algorithms being implemented in java?
such as the one of Sugiyama (Kozo Sugiyama, 1980).
Can anyone direct me to some sources please?
I would be grateful to any help I can get.
Sincerely
Karlheinz Toni

hi,
take a look at http://www.yworks.com/ - they have a very good java graph drawing library, which can create automatic layouts (among which are sugiyama styles and related styles)
you may download an evaluation version, or use the free online graph editor yEd (using webstart) which demonstrates a lot of the available layouts. Additionally, they have a nice gallery of graph drawings and automatic layouts on their site... go see it
greetings, sebastian

Spring Embedded Layout Algorithm

Does anyone know where I can find pseudocode for this? I've found code, but I want to come up with my own. I've been told this algorithm is not too difficult, but I'm not having any luck searching for pseudocode.
Please help!

Yep the code I gave will, in general pull all the nodes into a bunch in the middle.
There are a number of ways around this:
First. Fix the position of some nodes. The can be useful for some applications. Circuit layout for example
were you may want to specify the positions of some of the components.
Second. Add a term to the code that tries to seperate nodes. Therefore nodes are pulled together by thier
common edges but the effect is countered by another term if they get too close together.
Often a combination of the two is used as the first approach is generally useful but its a pain to require
users to specify the fixed nodes. The second works in general but it is often useful for the users to be able
to specify some fixed nodes, if they want to, ala the first approach.
How you implement this "push" factor depends on your needs. It may be a global value in which each
node tries to seperate itself from all other nodes (this can be expensive O(n^2)) or more simply that
each node has a gradually increasing "push" factor applied the closer it gets to nodes it is directly linked to.
Also the weight of the edges can be incorporated into the calculation if they have such a thing.
I should also say that if your graph contains many edges per node then it can be more efficient to iterate
through the nodes (rather then the edges) and compute the combined pull exterted on that node by all of the
edges that connect to it.

How do I remove a line in Layout?

There is a line in section text layout that I wish to either remove or move around (shown as the selected red line). But I can't seem to delete or move them once I selected it in the layout. Why? Thanks!

Thanks! It works. But if I apply the change to the section, it will wipe out all the images of all the sections... and I have a lot of images!
What's the best way to remove that line and not cause too much images? Can I do it page by page?

Line Item Layout

Hi Experts,
I have found all layouts for display functionality but I don't know how to create Layout for GL (FBL3N), Customer (FBL5N) and vendor (FBL1N) line item.
Please provide the solution to this.
Thanks a lot...........

Execute the report FBL1N or FBL3N or FBL5N
Settings ==> Special Fields
Include your special fields from the available tables. (This is cross client)
Create Transport request number and transport.
Regards,
Ravi

[Selection-screen] Begin of line, Icons, Layout, ...

Hi,
Is WDA lacking some those very familiar features we have in ABAP Selection-screen? (WDR_TEST_SELECT_OPTIONS application certainly does not show the full scope, is it?)
Is there a replacement for BEGIN OF LINE in WDA selection-screen?
What about adding comments?
Is this possible to add icon or images?
Besides, I was wondering how it is possible to lay the selection-screen in multiple columns. In tried different layout (Grid, Matrix, ...) without success.
Lastly, is this possible to put labels on top of input fields?
Do not hesitate to share your most beautiful selection-screens!
Thanks in advance.
Best regards,
Guillaume

Some of the designing things are missing in select options -
IF_WD_SELECT_OPTIONS~ADD_HORIZONTAL_DIVIDER - > to add a line
IF_WD_SELECT_OPTIONS`ADD_TEXT_LINE - Add a text based line...
Regarding alignment we need to work on it..there are layout options using ADD_BLOCK..
Adding Icon/Symbol - I don't see any option...in the interface

Blue line for layout (what are they called)

In pages, when you open a template or pre-made document, there are blue lines on the Y and x-axis that help outline the page. What are those called and how do I add them to my “new” document.

Welcome to Apple Discussions
They are called Alignment Guides & you can enable them in Preferences. You can also change the color by clicking in the blue box to bring up the color picker. I think they are on with all of the templates, including the blank one, but may not be with imported documents.

Sirius editor with Kieler/KLay layouter resizes nodes

Hi,
I have been trying to use the Kieler layout algorithms on diagrams that are created by a Sirius based editor.
Each time I relayout the diagram, using the Kieler based layout algorithm, diagram nodes are resized; they are enlarged.
I suspect that this is a problem of the Kieler layout algorithms but I want to know whether anyone has also tried this and if someone has found a solution for this issue already.
Greetings,
Wilbert

OK
I think I found something.
For some reasons, the Kieler (layered) layout algorithm considers each node to be a subgraph on its own. If the diagram is layouted, it first starts layouting its subgraphs and then the graph itself. The layout algorithm can be configured using properties. In fact, each item on the graph can have some properties. One of them is the Border Spacing which has a default value is 12.
So whenever a diagram is layouted, first all nodes are 'layouted'. As they are considered to be sugraphs, the Border Spacing property is applied which increases the size of the subgraphs with 24 pixels (12 on each side). Then the nodes on the diagram themselves are relayouted, taking the new size into account.
I am not sure whether the Sirius editor does something that leads Kieler to the conclusion that each node is a subgraph on its own or that Kieler interprets the Sirius generated diagram wrongly. So I'm not sure 'who to blame'.
So I think that I have a (manual) workaround. After displaying the graph for the first time, I need to select all nodes and set their border spacing property to zero. Selecting all nodes can be done with one action so that makes this workable.
I'm open for any additional suggestions.
Greetings,
Wilbert.

Line, Node Layout algorithms

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