- HTML-Like Labels
- HTML-Like Label Examples
Apr 12, 2021 - Explore Cassie Osborne (3Dinosaurs.com's board 'Shapes for Kids', followed by 120800 people on Pinterest. See more ideas about shapes for kids, shapes, shapes activities. Shapes is a fun educational activity to help children learn basic properties of simple geometric figures. Children will practice looking for differences and similarities between shapes to complete puzzles. Gets progressively more difficult as children complete the stages. The final stage introduces symmetry. There is a fun surprise at.
There are three main types of shapes :polygon-based,record-based anduser-defined.The record-based shape has largely been superseded and greatly generalizedby HTML-like labels.That is, instead of using shape=record, one mightconsider using shape=none, margin=0 and an HTML-like label.
The geometry and style of all node shapes are affected bythe node attributes fixedsize,fontname,fontsize,height,label,style andwidth.
Polygon-based Nodes
The possible polygon-based shapes are displayed below.
As the figures suggest, the shapes rect and rectangle are synonyms for box, and none is a synonym for plaintext.The shape plain is similar to these two, except that it also enforceswidth=0 height=0 margin=0, which guarantees that the actual size of the node is entirely determined by the label.This is useful, for example, when using HTML-like labels.Also, unlike the rest, we have shown these three, as well as underline,without style=filledto indicate the normal use. Can you download pc games on mac. If fill were turned on, the label text wouldappear in a filled rectangle.
The geometries of polygon-based shapes are also affectedby the node attributes regular,peripheries andorientation.If shape='polygon', the attributessides,skew anddistortion are also used.If unset, they default to 4, 0.0 and 0.0, respectively.The point shape is special in that it isonly affected by the peripheries,width andheight attributes.
Normally, the size of a node is determined by smallest width and heightneeded to contain its label and image, if any, with a margin specified bythe margin attribute. The widthand height must also be at least as large as the sizes specified by thewidth andheight attributes, which specifythe minimum values for these parameters. See the fixedsize attributefor ways of restricting the node size.In particular, if fixedsize=shape, the node’s shape will be fixedby the width andheight attributes, and the shapeis used for edge termination, but both the shape and label sizes are usedpreventing node overlap. For example, the following graph:
yields the figure:
Note that the label of the yellow node, with fixedsize=true, overlapsthe other node, where there is sufficient space for the gray node withfixedsize=shape.
The shapes: note, tab, folder,box3d and component were provided by Pander.The synthetic biology shapes:promoter,cds,terminator,utr,primersite,restrictionsite,fivepoverhang,threepoverhang,noverhang,assembly,signature,insulator,ribosite,rnastab,proteasesite,proteinstab,rpromoter,rarrow,larrow andlpromoterwere contributed by Jenny Cheng.
Record-based Nodes
NOTE: Please see the note about record-based nodes at thetop of this page. Also note that there are problems usingnon-trivial edges (edges with ports or labels) between adjacentnodes on the same rank if one or both nodes has a record shape.
These are specified by shape values of “record” and “Mrecord”.The structure of a record-based node is determined by its label,which has the following schema:
| rlabel | = | field ( '|' field )* |
| where field | = | fieldId or '{' rlabel '}' |
| and fieldId | = | [ '<' string '>'] [ string ] |
Braces, vertical bars and angle brackets must be escaped witha backslash character if you wish them to appear as a literal character.Spaces are interpreted as separators between tokens,so they must be escaped if you want spaces in the text.
The first string in fieldId assigns a portname to the field and canbe combined with the node name to indicate where to attach an edgeto the node. (See portPos.)The second string is used as the text for the field; it supports the usualescape sequencesn, l and r.
Visually, a record is a box, with fields represented by alternatingrows of horizontal or vertical subboxes. The Mrecord shape is identicalto a record shape, except that the outermost box has rounded corners.Flipping between horizontal and vertical layouts is done by nestingfields in braces “{…}”. The top-level orientation in a record ishorizontal. Thus, a record with label “A | B | C | D” will have 4 fields oriented left to right, while “{A | B | C | D}” will have them from top to bottom and “A | { B | C } | D” will have “B” over “C”, with“A” to the left and “D” to the right of “B” and “C”.
The initial orientation of a record node depends on therankdir attribute. If this attributeis TB (the default) or BT, corresponding to verticallayouts, the top-level fields in a record are displayed horizontally.If, however, this attribute is LR or RL,corresponding to horizontal layouts, the top-level fields are displayed vertically.
As an example of a record node, the dot input:
yields the figure:
If we add the line:
we get the layout:
If we change node struct1 to have shape Mrecord,it then looks like:
Styles for Nodes
Music studio software for mac free. The styleattribute can be used to modify the appearance of a node.At present, there are 8 style values recognized:filled, invisible, diagonals, rounded.dashed, dotted, solid and bold.As usual, the value of the styleattribute can be a comma-separated list of any of these. If thestyle contains conflicts (e.g, style='dotted, solid'), the lastattribute wins.
filledfillcolor or, if that’s not defined, itscolor. For unfilled nodes, the interior of the node is transparent towhatever color is the current graph or cluster background color.Note that point shapes are always filled. Thus, the code:
yields the figure:
invisiblediagonalsMsquare,Mcircle, andMdiamondare simply an ordinary square, circle anddiamond with the diagonals style set.roundedMrecord shape is simply shorthand for setting this style.Also, prior to 26 April 2005, the rounded and filled styles were mutually exclusive. As an example of rounding, dot uses the graph:
to produce the figure:
dasheddottedsolidboldAdditional styles may be available with a specific code generator.
HTML-Like Labels
NOTE: This feature is only available on versions of Graphvizthat are newer than mid-November 2003. In particular, it is not partof release 1.10.
NOTE: The font markups for bold, italic, underlining, subscript and superscript (<B>, <I>, <U>, <SUB> and <SUP>) are only available in versions after 14 October 2011, and the markup for strike-through (<S>) requires versions later than 15 September 2013.In addition, all of these markups arecurrently only available via the cairo and svg renderers.The horizontal and vertical rules (<HR> and <VR>)are only available in versions later than 8 July 2011.
NOTE: For releases later than 9 September 2014, one can use shape=plain so that the sizeof the node is totally determined by the label. Otherwise, the node’s margin, width and height values may cause thenode to be larger, so that edges are clipped away from the label. In effect, shape=plain is shorthandfor shape=none width=0 height=0 margin=0.
If the value of a label attribute(label for nodes, edges, clusters, andgraphs, and theheadlabel andtaillabelattributes of an edge) is given as anHTML string,that is, delimited by <..>rather than '..',the label is interpreted asan HTML description. At their simplest, such labelscan describe multiple lines of variously aligned text as provided by ordinary string labels. More generally, thelabel can specify a table similar to those provided by HTML,with different graphical attributes at each level.
As HTML strings are processed like HTML input, any use ofthe ', &, <, and > characters in literal text or in attribute valuesneed to be replaced by the corresponding escape sequence. For example, if you want touse & in an href value, this should be represented as &.
NOTE: The features and syntax supported by these labels aremodeled on HTML. However, there are many aspects that are relevantto Graphviz labels that are not in HTML and, conversely, HTML allowsvarious constructs which are meaningless in Graphviz. We will generallyrefer to these labels as “HTML labels” rather than the cumbersome“HTML-like labels” but the reader is warned that these are not reallyHTML. The grammar below describes precisely what Graphviz will accept.
Although HTML labels are not, strictly speaking, a shape, they can beviewed as a generalization of the record shapes described above. In particular, if a node has set its shapeattribute to none or plaintext, the HTML label will be the node’sshape. On the other hand, if the node has any other shape (except point), the HTML label will be embedded within the node thesame way an ordinary label would be. Adding HTML labels to record-based shapes (record and Mrecord) is discouraged and may lead to unexpected behavior because of their conflicting label schemas and overlapping functionality.
The following is an abstract grammar for HTML labels.Terminals, corresponding to elements, are shown in bold font,and nonterminals in italics.Square brackets [ and ] enclose optional items.Vertical bars | separate alternatives.Note that, as in HTML, element and attribute names are case-insensitive.(cf. sections 3.2.1 and 3.2.2 of the HTML 4.01 specification).
| label | : | text |
| | | fonttable | |
| text | : | textitem |
| | | texttextitem | |
| textitem | : | string |
| | | <BR/> | |
| | | <FONT>text</FONT> | |
| | | <I>text</I> | |
| | | <B>text</B> | |
| | | <U>text</U> | |
| | | <O>text</O> | |
| | | <SUB>text</SUB> | |
| | | <SUP>text</SUP> | |
| | | <S>text</S> | |
| fonttable | : | table |
| | | <FONT>table</FONT> | |
| | | <I>table</I> | |
| | | <B>table</B> | |
| | | <U>table</U> | |
| | | <O>table</O> | |
| table | : | <TABLE>rows</TABLE> |
| rows | : | row |
| | | rowsrow | |
| | | rows<HR/>row | |
| row | : | <TR>cells</TR> |
| cells | : | cell |
| | | cellscell | |
| | | cells<VR/>cell | |
| cell | : | <TD>label</TD> |
| | | <TD><IMG/></TD> |
All non-printing characters such as tabs or newlines are ignored.Above, a string is any collection of printable characters, includingspaces. For tables, outside of the body of a <TD> element,whitespace characters are ignored, including spaces; within a <TD> element, spacesare preserved but all other white space characters are discarded.N.B. For technical reasons, if a table is wrapped in a font element such as <FONT>or <B>, any space immediately before or after this will cause a syntax error. For example,the label
is not legal. Removing either the space or the <U>..</U> will fix this.
HTML comments are allowed within an HTML string. They can occur anywhereprovided that, if they contain part of an HTML element, they must containthe entire element.
As is obvious from the above description, the interpretation of white spacecharacters is one place where HTML-like labels is very different from standard HTML. In HTML, any sequence of white space characters is collapsed to a single space, If the user does not want this to happen, theinput must use non-breaking spaces . This makes sense inHTML, where text layout depends dynamically on the space available. InGraphviz, the layout is statically determined by the input, so it isreasonable to treat ordinary space characters as non-breaking. In addition,ignoring tabs and newlines allows the input text to be formatted foreasier reading.
Each of the HTML elements has a set of optional attributes.Attribute values must appear in double quotes.
CENTERaligns the object in the center. (Default)LEFTaligns the object on the left.RIGHTaligns the object on the right.- (
<TD>only)TEXTaligns lines of text using the full cell width. The alignment of a line is determined by its (possibly implicit) associated<BR>element.
The contents of a cell are normally aligned as a block. In particular,lines of text are first aligned as a text block based on the width ofthe widest line and the corresponding <BR> elements. Then,the entire text block is aligned within a cell. If, however, thecell’s ALIGN value is TEXT, and the cell containslines of text, then the lines are justified using the entire availablewidth of the cell. If the cell does not contain text, then the containedimage or table is centered.
<BR> elements containedin the cell. That is, if a <BR> element has noexplicit ALIGN attribute, the attribute value is specifiedby the value of BALIGN.<FONT>..</FONT>, or the border colorof the table or cell within the scope of<TABLE>..</TABLE>,or <TD>..</TD>.This color can be overridden by a COLOR attribute in descendents.By default, the font color is determined by thefontcolor attribute ofthe corresponding node, edge or graph, and the border coloris determined by thecolor attribute ofthe corresponding node, edge or graph.*, which causes a vertical rule toappear between every cell in every row.<FONT>..</FONT>.This can be overridden by a FACE attribute in descendents.By default, the font name is determined by thefontname attribute of the correspondingnode, edge or graph.- FALSE allows the object to grow so that all its contents will fit. (Default)
- TRUE fixes the object size to its given WIDTH and HEIGHT. Both of these attributes must be supplied.
'value' is treated as anescString similarly to theURL attribute.'value' is treated as anescString similarly to theid attribute.<FONT>..</FONT>.This can be overridden by a POINT-SIZE attribute in descendents.By default, the font size is determined by thefontsize attribute of the correspondingnode, edge or graph.*, which causes a horizontal rule toappear between every row.FALSE: keep image its natural size. (Default)TRUE: scale image uniformly to fit.WIDTH: expand image width to fillHEIGHT: expand image height to fillBOTH: expand both image width height to fillIf this attribute is undefined, the image inherits the imagescaleattribute of the graph object being drawn.As with the imagescaleattribute, if the cell has a fixed size and the image is too large,any offending dimension will be shrunk to fit the space, thescaling being uniform in width and height if SCALE='true'.Note that the containing cell’s ALIGNand VALIGN attributes overridean image’s SCALE attribute.
'value'string can contain any collection of the (case-insensitive) characters 'L', 'T', 'R', or 'B',corresponding to the left, top, right and, bottom sides of the border,respectively. For example, SIDES='LB' would indicate only theleft and bottom segments of the border should be drawn.ROUNDED and RADIAL for tables, and RADIAL for cells.If ROUNDED is specified, the table will have rounded corners.This probably works best if the outmost cells have no borders, or their CELLSPACINGis sufficiently large.If it is desirable to have borders around the cells, use HRand VR elements, or the COLUMNS and ROWS attributes of TABLE. The RADIAL attribute indicates a radial gradient fill. See the BGCOLOR andGRADIENTANGLE attributes.
'value' is treated as anescString similarly to thetarget attribute.HREF attribute.Note that the 'value' is treated as anescString similarly to thetooltip attribute.MIDDLEaligns the object in the center. (Default)BOTTOMaligns the object on the bottom.TOPaligns the object on the top.
There is some inheritance among the attributes. If a table specifiesa CELLPADDING, CELLBORDER or BORDERvalue, this value is used by the table’scells unless overridden. If a cell or table specifies a BGCOLOR,this will be the background color for all of its descendents.Of course, if a background or fill color is specified for thegraph object owning the label, this will be the originalbackground for the label.The object’s fontname, fontcolor and fontsize attributesare the default for drawing text. These can be overridden by usingFONT to set new values. The new font values will holduntil overridden by an enclosed FONT element.Finally, the pencolor or color of the graph object will be used asthe border color.
If you want horizontal or vertical rules used uniformly within a table, considerusing the COLUMNS or ROWS attributesrather than using manyHR and VR elements.
Because of certain limitations in handling tables in a device-independentmanner, when BORDER is 1 and both table and cell bordersare on and CELLSPACING is less than 2, anomalies can arisein the output, such as gaps between sides of borders which should beabutting or even collinear. The user can usual get around this by increasingthe border size or the spacing, or turning off the table border.
Shapeshift
HTML-Like Label Examples
Recreating the Record Example
The dot input:
produces the HTML analogue of the record example above:
As usual, an HTML specification is more verbose.
More Complex Example
On the other hand, HTML labels are much more general:
produces:
Fonts Example
An example using <FONT> elements:
produces:
Images Example
Shapeshifting
Using an <IMG> element:
produces:
Sides Example
The sides attribute (version 2.37 and later) allows one to combine cells to formvarious non-convex shapes. For example, a tee-shaped node
produces: Os x el capitan security updates free.
User-defined Node Shapes
There is a third type of node shape which is specified by the user.Typically, these shapes rely on the details of a concrete graphicsformat. At present, shapes can be described using PostScript, via afile or add-on library, for use in PostScript output, or shapes canbe specified by a bitmap-image file for use with SVG or bitmap (jpeg,gif, etc.) output. More information can be found on the page How to create custom shapes.
SDL Shapes for PostScript
One example of user-defined node shapes is provided by Mark Rison of CSR.These are the SDL shapes.These are available as PostScript functions whose use is described inExternal PostScript procedures.The necessary PostScript library file and sample use can be found in thecontrib/sdlshapes directory in the release. Please note theCOPYRIGHT AND PERMISSION NOTICE contained in the library file sdl.ps.
Shapes For Kids
The table belowgives the shape names and the corresponding node shapes: