Altering the shape of an artwork

A method of altering the shape of an artwork, wherein the artwork is defined by a tree structure having leaf nodes comprising graphical objects and parent nodes comprising graphical operators, and wherein each node has fields adapted for storing values indicative of one or more alteration rules applicable to that node or its sub-tree, the method comprising the steps of:

• selecting a target area for fitting the artwork;
• traversing one or more of the said nodes;
• and
• applying, for each one of the traversed nodes that is a leaf node, a said alteration rule to each point within the graphical object comprising the leaf node to re-position said each point in a first direction with respect to the target area, thereby altering the shape of the artwork in said first direction.

A method of altering the shape of an artwork, wherein the artwork is defined by a tree structure having leaf nodes comprising graphical objects and parent nodes comprising graphical operators, and wherein each node has fields adapted for storing values indicative of one or more horizontal and vertical alteration rules applicable to that node or its sub-tree and a field for storing a value indicative of whether or not a mapping restriction is applicable to that node and its sub-tree if any, the method comprising the steps of:

• selecting a target area for fitting the artwork;
• traversing one or more of the said nodes;
• applying, for each of the traversed nodes that has a value indicating a mapping restriction, an affine transformation to the sub-tree of that node;
• applying, for each one of the traversed nodes that is a leaf node and has a value indicating no mapping restriction, a said horizontal alteration rule to each point within the graphical object comprising the leaf node to horizontally re-position said each point with respect to the target area;
• and
• applying, for each one of the traversed nodes that is a leaf node and has a value indicating no mapping restriction, a said vertical alteration rule to each point within the graphical object comprising the leaf node to vertically re-position said each point with respect to the target area, thereby altering the shape of the artwork.

Apparatus for altering the shape of an artwork, wherein the artwork is defined by a tree structure having leaf nodes comprising associated graphical objects and parent nodes comprising associated graphical operators, whereby sub-trees of the tree structure comprise associated graphical objects, wherein each node has fields adapted for storing values indicative of one or more associated alteration rules applicable to that node or that node's sub-tree, the apparatus comprising:

• means for selecting a target area for fitting the artwork;
• means for traversing one or more of said nodes;
• and
• means for applying, for each one of the traversed nodes, one or more said alteration rules associated with said traversed node to each point within the graphical object associated with said traversed node to re-position said each point with respect to the target area, thereby altering the shape of the artwork.

Apparatus for altering the shape of an artwork, wherein the artwork is defined by a tree structure having leaf nodes comprising graphical objects and parent nodes comprising graphical operators, and wherein each node has fields adapted for storing values indicative of one or more alteration rules applicable to that node or its sub-tree, the apparatus comprising:

• means for selecting a target area for fitting the artwork;
• means for traversing one or more of the said nodes;
• and
• means for applying, for each one of the traversed nodes that is a leaf node, a said alteration rule to each point within the graphical object comprising the leaf node to re-position said each point in a first direction with respect to the target area, thereby altering the shape of the artwork in said first direction.

Apparatus for altering the shape of an artwork, wherein the artwork is defined by a tree structure having leaf nodes comprising graphical objects and parent nodes comprising graphical operators, and wherein each nude has fields adapted for storing values indicative of one or more horizontal and vertical alteration rules applicable to that node or its sub-tree and a field for storing a value indicative of whether or not a mapping restriction is applicable to that node and its sub-tree if any, the apparatus comprising:

• means for selecting a target area for fitting the artwork;
• means for traversing one or more of the said nodes;
• means for applying, for each of the traversed nodes that has a value indicating a mapping restriction, an affine transformation to the sub-tree of that node;
• means for applying, for each one of the traversed nodes that is a leaf node and has a value indicating no mapping restriction, a said horizontal alteration rule to each point within the graphical object comprising the leaf node to horizontally re-position said each point with respect to the target area;
• and
• means for applying, for each one of the traversed nodes that is a leaf node and has a value indicating no mapping restriction, a said vertical alteration rule to each point within the graphical object comprising the leaf node to vertically re-position said each point with respect to the target area, thereby altering the shape of the artwork.

A computer readable medium comprising a computer program for altering the shape of an artwork, wherein the artwork is defined by a tree structure having leaf nodes comprising associated graphical objects and parent nodes comprising associated graphical operators, whereby sub-trees of the tree structure comprise associated graphical objects, and wherein each node has fields adapted for storing values indicative of one or more associated alteration rules applicable to that node or that node's sub-tree, the computer program comprising:

• means for selecting a target area for fitting the artwork;
• means for traversing one or more of said nodes;
• and
• means for applying, for each one of the traversed nodes, one or more said alteration rules associated with said traversed node to each point within the graphical object associated with said traversed node to re-position said each point with respect to the target area, thereby altering the shape of the artwork.

A computer readable medium comprising a computer program for altering the shape of an artwork, wherein the artwork is defined by a tree structure having leaf nodes comprising graphical objects and parent nodes comprising graphical operators, and wherein each node has fields adapted for storing values indicative of one or more alteration, rules applicable to that node or its sub-tree, the computer program comprising:

• means for selecting a target area for fitting the artwork;
• means for traversing one or more of the said nodes;
• and
• means for applying, for each one of the traversed nodes that is a leaf node, a said alteration rule to each point within the graphical object comprising the leaf node to re-position said each point in a first direction with respect to the target area, thereby altering the shape of the artwork in said first direction.

A computer readable medium comprising a computer program for altering the shape of an artwork, wherein the artwork is defined by a tree structure having leaf nodes comprising graphical objects and parent nodes comprising graphical operators, and wherein each node has fields adapted for storing values indicative of one or more horizontal and vertical alteration rules applicable to that node or its sub-tree and a field for storing a value indicative of whether or not a mapping restriction is applicable to that node and its sub-tree if any, the computer program comprising:

• means for selecting a target area for fitting the artwork;
• means for traversing one or more of the said nodes;
• means for applying, for each of the traversed nodes that has a value indicating a mapping restriction, an affine transformation to the sub-tree of that node;
• means for applying, for each one of the traversed nodes that is a leaf node and has a value indicating no mapping restriction, a said horizontal alteration rule to each point within the a graphical object comprising the leaf node to horizontally re-position said each point with respect to the target area;
• and
• means for applying, for each one of the traversed nodes that is a leaf node and has a value indicating no mapping restriction, a said vertical alteration rule to each point within the graphical object comprising the leaf node to vertically re-position said each point with respect to the target area, thereby altering the shape of the artwork.