circpos.c File Reference

#include "config.h"
#include <cgraph/alloc.h>
#include <circogen/blockpath.h>
#include <circogen/circpos.h>
#include <circogen/nodelist.h>
#include <math.h>
#include <stddef.h>

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Data Structures
struct	posstate
struct	posinfo_t

Functions
static double	getRotation (block_t *sn, double x, double y, double theta)
static void	applyDelta (block_t *sn, double x, double y, double rotate)
static double	getInfo (posinfo_t *pi, posstate *stp, double min_dist)
	get size info for blocks attached to the given node.
static void	setInfo (posinfo_t *p0, posinfo_t *p1, double delta)
static void	positionChildren (posinfo_t *info, posstate *stp, size_t length, double min_dist)
static double	position (size_t childCount, size_t length, nodelist_t *nodepath, block_t *sn, double min_dist)
static void	doBlock (Agraph_t *g, block_t *sn, double min_dist, circ_state *state)
void	circPos (Agraph_t *g, block_t *sn, circ_state *state)

Function Documentation

applyDelta()

static void applyDelta ( block_t *  sn, double  x, double  y, double  rotate  )

static

Definition at line 118 of file circpos.c.

References agfstnode(), agnxtnode(), applyDelta(), block::children, blocklist_t::first, ND_pos, block::next, rotate(), block::sub_graph, X, and Y.

Referenced by applyDelta(), position(), and positionChildren().

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circPos()

void circPos	(	Agraph_t *	g,
		block_t *	sn,
		circ_state *	state
	)

Definition at line 426 of file circpos.c.

References doBlock(), and state.

Referenced by circularLayout().

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doBlock()

static void doBlock ( Agraph_t *  g, block_t *  sn, double  min_dist, circ_state *  state  )

static

Set positions of block sn and its child blocks.

Parameters

state

Context containing a counter to use for graph copy naming

Definition at line 398 of file circpos.c.

References BLK_PARENT, block::children, block::circle_list, doBlock(), blocklist_t::first, layout_block(), M_PI, block::next, block::parent_pos, and state.

Referenced by circPos(), and doBlock().

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getInfo()

static double getInfo ( posinfo_t *  pi, posstate *  stp, double  min_dist  )

static

Definition at line 179 of file circpos.c.

References BLK_PARENT, posinfo_t::childCount, posstate::cp, posinfo_t::diameter, posinfo_t::maxRadius, posinfo_t::minRadius, posinfo_t::n, block::next, block::radius, and posstate::radius.

Referenced by position().

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getRotation()

static double getRotation ( block_t *  sn, double  x, double  y, double  theta  )

static

Definition at line 49 of file circpos.c.

References agfstnode(), agnxtnode(), CHILD, block::circle_list, COALESCED, LEN2, M_PI, ND_pos, neighbor, block::parent_pos, PSI, block::rad0, block::radius, and block::sub_graph.

Referenced by positionChildren().

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position()

static double position ( size_t  childCount, size_t  length, nodelist_t *  nodepath, block_t *  sn, double  min_dist  )

static

Definition at line 310 of file circpos.c.

References applyDelta(), CHILD, block::children, delta, blocklist_t::first, free(), getInfo(), gv_calloc(), ISPARENT, M_PI, posinfo_t::n, positionChildren(), block::radius, posinfo_t::scale, SET_COALESCED, setInfo(), state, and posinfo_t::theta.

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positionChildren()

static void positionChildren ( posinfo_t *  info, posstate *  stp, size_t  length, double  min_dist  )

static

Definition at line 216 of file circpos.c.

References applyDelta(), BLK_PARENT, block::circle_list, cnt(), posstate::cp, posstate::firstAngle, getRotation(), posstate::lastAngle, M_PI, posstate::neighbor, block::next, PSI, block::radius, and posstate::subtreeR.

Referenced by position().

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setInfo()

static void setInfo ( posinfo_t *  p0, posinfo_t *  p1, double  delta  )

static

Definition at line 204 of file circpos.c.

References delta, posinfo_t::diameter, posinfo_t::minRadius, and posinfo_t::scale.

Referenced by position().

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