NAME
SVG::DOM - A library of DOM (Document Object Model) methods for SVG objects.
SUMMARY
SVG::DOM provides a selection of methods for accessing and manipulating SVG elements through DOM-like methods such as getElements, getChildren, getNextSibling and so on.
Currently only methods that provide read operations are supported. Methods to manipulate SVG elements will be added in a future release.
SYNOPSIS
my $svg=new SVG(id=>"svg_dom_synopsis", width=>"100", height=>"100");
my %attributes=$svg->getAttributes;
my $group=$svg->group(id=>"group_1");
my $name=$group->getElementName;
my $id=$group->getElementID;
$group->circle(id=>"circle_1", cx=>20, cy=>20, r=>5, fill=>"red");
my $rect=$group->rect(id=>"rect_1", x=>10, y=>10, width=>20, height=>30);
my $width=$rect->getAttribute("width");
my $has_children=$group->hasChildren();
my @children=$group->getChildren();
my $kid=$group->getFirstChild();
do {
print $kid->xmlify();
} while ($kid=$kid->getNextSibling);
my @ancestors=$rect->getParents();
my $is_ancestor=$group->isAncestor($rect);
my $is_descendant=$rect->isDescendant($svg);
my @rectangles=$svg->getElements("rect");
my $allelements_arrayref=$svg->getElements();
...and so on...METHODS
@elements = $obj->getElements($element_name)
Return a list of all elements with the specified name (i.e. type) in the document. If no element name is provided, returns a list of all elements in the document. In scalar context returns an array reference.
@children = $obj->getChildren()
Return a list of all children defined on the current node, or undef if there are no children. In scalar context returns an array reference.
Alias: getChildElements(), getChildNodes()
@children = $obj->hasChildren()
Return 1 if the current node has children, or 0 if there are no children.
Alias: hasChildElements, hasChildNodes()
$ref = $obj->getFirstChild()
Return the first child element of the current node, or undef if there are no children.
$ref = $obj->getLastChild()
Return the last child element of the current node, or undef if there are no children.
$ref = $obj->getSiblings()
Return a list of all children defined on the parent node, containing the current node.
$ref = $obj->getNextSibling()
Return the next child element of the parent node, or undef if this is the last child.
$ref = $obj->getPreviousSibling()
Return the previous child element of the parent node, or undef if this is the first child.
$index = $obj->getChildIndex()
Return the place of this element in the parent node's list of children, starting from 0.
$element = $obj->getChildAtIndex($index)
Returns the child element at the specified index in the parent node's list of children.
$ref = $obj->getParentElement()
Return the parent of the current node.
Alias: getParent()
@refs = $obj->getParentElements()
Return a list of the parents of the current node, starting from the immediate parent. The last member of the list should be the document element.
Alias: getParents()
$name = $obj->getElementName()
Return a string containing the name (i.e. the type, not the ID) of an element.
Alias: getType(), getTagName(), getNodeName()
$ref = $svg->getElementByID($id)
Alias: getElementbyID()
Return a reference to the element which has ID $id, or undef if no element with this ID exists.
$id = $obj->getElementID()
Return a string containing the ID of the current node, or undef if it has no ID.
$ref = $obj->getAttributes()
Return a hash reference of attribute names and values for the current node.
$value = $obj->getAttribute($name);
Return the string value attribute value for an attribute of name $name.
$ref = $obj->setAttributes({name1=>$value1,name2=>undef,name3=>$value3})
Set a set of attributes. If $value is undef, deletes the attribute.
$value = $obj->setAttribute($name,$value);
Set attribute $name to $value. If $value is undef, deletes the attribute.
$cdata = $obj->getCDATA()
Return the cannonical data (i.e. textual content) of the current node.
Alias: getCdata(), getData()
$boolean = $obj->isAncestor($element)
Returns 1 if the current node is an ancestor of the specified element, otherwise 0.
$boolean = $obj->isDescendant($element)
Returns 1 if the current node is a descendant of the specified element, otherwise 0.
AUTHOR
Ronan Oger, ronan@roasp.com
SEE ALSO
perl(1), SVG, SVG::XML, SVG::Element, SVG::Parser, SVG::Manual
<http://www.roasp.com/>
<http://www.perlsvg.com/>
<http://www.roitsystems.com/>
<http://www.w3c.org/Graphics/SVG/>