05-25-2012
Few questions:
Quote:
Originally Posted by
dets34
RANDOM TEXT
RANDOM TEXT
Node # x pos ypos zpos
5948 50.24 125.35 5.79
(there are over 200 lines of this data)
RANDOM TEXT
RANDOM TEXT
1. Please post few lines from the input file spanning few lines from random text, few lines of node data, and few more lines of random text. The simplest way to loop through the nodes and positions is by checking if the line starts with a number (unless no other random text starts with a number too)
Quote:
Originally Posted by
dets34
i need to somehow open this file, grab the data for Node, x position, y pos, and z pos and from this data be able to calculate which node is closest to a given position by a user defined input.
so if the user enters a position of lets say 10 for the x pos, 10 for the y pos, and 10 for the z pos. (just keeping it simple) the code needs to be able to loop through the data and find the node with the closest corresponding positions.
2. When you say grab the closest point, do you mean the point from file nearest to the user inputted data:
dist = sqrt ((x_input - x)^2 + (y_input - y)^2 + (z_input - z)^2)
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LEARN ABOUT OSX
xml::xpath::node::element
XPath::Node::Element(3) User Contributed Perl Documentation XPath::Node::Element(3)
NAME
Element - an <element>
API
new ( name, prefix )
Create a new Element node with name "name" and prefix "prefix". The name be "prefix:local" if prefix is defined. I know that sounds wierd,
but it works ;-)
getName
Returns the name (including "prefix:" if defined) of this element.
getLocalName
Returns just the local part of the name (the bit after "prefix:").
getChildNodes
Returns the children of this element. In list context returns a list. In scalar context returns an array ref.
getChildNode ( pos )
Returns the child at position pos.
appendChild ( childnode )
Appends the child node to the list of current child nodes.
getAttribute ( name )
Returns the attribute node with key name.
getAttributes / getAttributeNodes
Returns the attribute nodes. In list context returns a list. In scalar context returns an array ref.
appendAttribute ( attrib_node)
Appends the attribute node to the list of attributes (XML::XPath stores attributes in order).
getNamespace ( prefix )
Returns the namespace node by the given prefix
getNamespaces / getNamespaceNodes
Returns the namespace nodes. In list context returns a list. In scalar context returns an array ref.
appendNamespace ( ns_node )
Appends the namespace node to the list of namespaces.
getPrefix
Returns the prefix of this element
getExpandedName
Returns the expanded name of this element (not yet implemented right).
string_value
For elements, the string_value is the concatenation of all string_values of all text-descendants of the element node in document order.
toString ( [ norecurse ] )
Output (and all children) the node to a string. Doesn't process children if the norecurse option is a true value.
perl v5.16.2 2003-01-26 XPath::Node::Element(3)