static void PlotAdd(void)
{
Ihandle *ih = iuplua_checkihandle(1);
IupPlotAdd(ih, (float)luaL_check_number(2), (float)luaL_check_number(3));
}
int IupPlotSetFormula(Ihandle* ih, int sample_count, const char* formula, const char* init)
{
lua_State *L;
int i, ds_index, ret_count = 1;
double min, max, step, p, x, y;
char formula_func[1024];
IFnL init_cb;
iupASSERT(iupObjectCheck(ih));
if (!iupObjectCheck(ih))
return -1;
/* must be an IupMatrix */
if (ih->iclass->nativetype != IUP_TYPECANVAS ||
!IupClassMatch(ih, "plot"))
return -1;
L = luaL_newstate();
luaL_openlibs(L);
{
const char* register_global =
"function openpackage(ns)\n"
" for n, v in pairs(ns) do _G[n] = v end\n"
"end\n"
"openpackage(math)\n";
luaL_dostring(L, register_global);
}
if (init)
luaL_dostring(L, init);
init_cb = (IFnL)IupGetCallback(ih, "FORMULAINIT_CB");
if (init_cb)
init_cb(ih, L);
lua_pushlightuserdata(L, ih);
lua_setglobal(L, "plot");
if (IupGetInt(ih, "FORMULA_PARAMETRIC"))
ret_count = 2;
sprintf(formula_func, "function plot_formula(sample_index, %s)\n"
" return %s\n"
"end\n", ret_count == 2 ? "t" : "x", formula);
if (luaL_dostring(L, formula_func) != 0)
{
ShowFormulaError(ih, L);
lua_close(L);
return -1;
}
min = IupGetDouble(ih, "FORMULA_MIN");
max = IupGetDouble(ih, "FORMULA_MAX");
step = (max - min) / (double)(sample_count - 1);
IupPlotBegin(ih, 0);
for (i = 0, p = min; i < sample_count; i++, p += step)
{
lua_getglobal(L, "plot_formula");
lua_pushinteger(L, i);
lua_pushnumber(L, p);
if (lua_pcall(L, 2, ret_count, 0) != 0)
{
ShowFormulaError(ih, L);
lua_close(L);
return -1;
}
if (!lua_isnumber(L, -1))
{
const char* str_message = IupGetLanguageString("IUP_ERRORINVALIDFORMULA");
IupMessageError(IupGetDialog(ih), str_message);
lua_close(L);
return -1;
}
if (ret_count == 2)
{
if (!lua_isnumber(L, -2))
{
const char* str_message = IupGetLanguageString("IUP_ERRORINVALIDFORMULA");
IupMessageError(IupGetDialog(ih), str_message);
lua_close(L);
return -1;
}
x = lua_tonumber(L, -2);
y = lua_tonumber(L, -1);
lua_pop(L, 2); /* remove the result from the stack */
}
else
{
x = p;
y = lua_tonumber(L, -1);
lua_pop(L, 1); /* remove the result from the stack */
}
IupPlotAdd(ih, x, y);
}
ds_index = IupPlotEnd(ih);
lua_close(L);
return ds_index;
}
void InitPlots(void)
{
int theI;
float x, y;
// PLOT 0 - MakeExamplePlot1
IupSetAttribute(plot[0], "TITLE", "AutoScale");
IupSetAttribute(plot[0], "MARGINTOP", "40");
IupSetAttribute(plot[0], "MARGINLEFT", "40");
IupSetAttribute(plot[0], "MARGINBOTTOM", "50");
IupSetAttribute(plot[0], "TITLEFONTSIZE", "16");
IupSetAttribute(plot[0], "AXS_XLABEL", "gnu (Foo)");
IupSetAttribute(plot[0], "AXS_YLABEL", "Space (m^3)");
IupSetAttribute(plot[0], "AXS_YFONTSIZE", "7");
IupSetAttribute(plot[0], "AXS_YTICKFONTSIZE", "7");
IupSetAttribute(plot[0], "LEGENDSHOW", "YES");
IupSetAttribute(plot[0], "AXS_XFONTSIZE", "10");
IupSetAttribute(plot[0], "AXS_YFONTSIZE", "10");
IupSetAttribute(plot[0], "AXS_XLABELCENTERED", "NO");
IupSetAttribute(plot[0], "AXS_YLABELCENTERED", "NO");
// IupSetAttribute(plot[0], "USE_IMAGERGB", "YES");
// IupSetAttribute(plot[0], "USE_GDI+", "YES");
float theFac = (float)1.0/(100*100*100);
IupPlotBegin(plot[0], 0);
for (theI=-100; theI<=100; theI++)
{
x = (float)(theI+50);
y = theFac*theI*theI*theI;
IupPlotAdd(plot[0], x, y);
}
IupPlotEnd(plot[0]);
IupSetAttribute(plot[0], "DS_LINEWIDTH", "3");
IupSetAttribute(plot[0], "DS_LEGEND", "Line");
theFac = (float)2.0/100;
IupPlotBegin(plot[0], 0);
for (theI=-100; theI<=100; theI++)
{
x = (float)theI;
y = -theFac*theI;
IupPlotAdd(plot[0], x, y);
}
IupPlotEnd(plot[0]);
IupSetAttribute(plot[0], "DS_LEGEND", "Curve 1");
IupPlotBegin(plot[0], 0);
for (theI=-100; theI<=100; theI++)
{
x = (float)(0.01*theI*theI-30);
y = (float)0.01*theI;
IupPlotAdd(plot[0], x, y);
}
IupPlotEnd(plot[0]);
IupSetAttribute(plot[0], "DS_LEGEND", "Curve 2");
// PLOT 1 - MakeExamplePlot2
IupSetAttribute(plot[1], "TITLE", "No Autoscale+No CrossOrigin");
IupSetAttribute(plot[1], "TITLEFONTSIZE", "16");
IupSetAttribute(plot[1], "MARGINTOP", "40");
IupSetAttribute(plot[1], "MARGINLEFT", "55");
IupSetAttribute(plot[1], "MARGINBOTTOM", "50");
IupSetAttribute(plot[1], "BGCOLOR", "0 192 192");
IupSetAttribute(plot[1], "AXS_XLABEL", "Tg (X)");
IupSetAttribute(plot[1], "AXS_YLABEL", "Tg (Y)");
IupSetAttribute(plot[1], "AXS_XAUTOMIN", "NO");
IupSetAttribute(plot[1], "AXS_XAUTOMAX", "NO");
IupSetAttribute(plot[1], "AXS_YAUTOMIN", "NO");
IupSetAttribute(plot[1], "AXS_YAUTOMAX", "NO");
IupSetAttribute(plot[1], "AXS_XMIN", "10");
IupSetAttribute(plot[1], "AXS_XMAX", "60");
IupSetAttribute(plot[1], "AXS_YMIN", "-0.5");
IupSetAttribute(plot[1], "AXS_YMAX", "0.5");
IupSetAttribute(plot[1], "AXS_XCROSSORIGIN", "NO");
IupSetAttribute(plot[1], "AXS_YCROSSORIGIN", "NO");
IupSetAttribute(plot[1], "AXS_XFONTSTYLE", "BOLD");
IupSetAttribute(plot[1], "AXS_YFONTSTYLE", "BOLD");
IupSetAttribute(plot[1], "AXS_XREVERSE", "YES");
IupSetAttribute(plot[1], "GRIDCOLOR", "128 255 128");
IupSetAttribute(plot[1], "GRIDLINESTYLE", "DOTTED");
IupSetAttribute(plot[1], "GRID", "YES");
IupSetAttribute(plot[1], "LEGENDSHOW", "YES");
theFac = (float)1.0/(100*100*100);
IupPlotBegin(plot[1], 0);
for (theI=0; theI<=100; theI++)
{
x = (float)(theI);
y = theFac*theI*theI*theI;
IupPlotAdd(plot[1], x, y);
}
IupPlotEnd(plot[1]);
theFac = (float)2.0/100;
IupPlotBegin(plot[1], 0);
for (theI=0; theI<=100; theI++)
{
x = (float)(theI);
y = -theFac*theI;
IupPlotAdd(plot[1], x, y);
}
IupPlotEnd(plot[1]);
// PLOT 2 - MakeExamplePlot4
IupSetAttribute(plot[2], "TITLE", "Log Scale");
IupSetAttribute(plot[2], "TITLEFONTSIZE", "16");
IupSetAttribute(plot[2], "MARGINTOP", "40");
IupSetAttribute(plot[2], "MARGINLEFT", "70");
IupSetAttribute(plot[2], "MARGINBOTTOM", "50");
IupSetAttribute(plot[2], "GRID", "YES");
IupSetAttribute(plot[2], "AXS_XSCALE", "LOG10");
IupSetAttribute(plot[2], "AXS_YSCALE", "LOG2");
IupSetAttribute(plot[2], "AXS_XLABEL", "Tg (X)");
IupSetAttribute(plot[2], "AXS_YLABEL", "Tg (Y)");
IupSetAttribute(plot[2], "AXS_XFONTSTYLE", "BOLD");
IupSetAttribute(plot[2], "AXS_YFONTSTYLE", "BOLD");
theFac = (float)100.0/(100*100*100);
IupPlotBegin(plot[2], 0);
for (theI=0; theI<=100; theI++)
{
x = (float)(0.0001+theI*0.001);
y = (float)(0.01+theFac*theI*theI*theI);
IupPlotAdd(plot[2], x, y);
}
IupPlotEnd(plot[2]);
IupSetAttribute(plot[2], "DS_COLOR", "100 100 200");
//PLOT 3 - MakeExamplePlot5
IupSetAttribute(plot[3], "TITLE", "Bar Mode");
IupSetAttribute(plot[3], "TITLEFONTSIZE", "16");
IupSetAttribute(plot[3], "MARGINTOP", "40");
IupSetAttribute(plot[3], "MARGINLEFT", "30");
IupSetAttribute(plot[3], "MARGINBOTTOM", "30");
const char * kLables[12] = {"jan","feb", "mar", "apr", "may", "jun", "jul", "aug", "sep", "oct", "nov", "dec"};
const float kData[12] = {1,2,3,4,5,6,7,8,9,0,1,2};
IupPlotBegin(plot[3], 1);
for (theI=0; theI<12; theI++)
IupPlotAddStr(plot[3], kLables[theI], kData[theI]);
IupPlotEnd(plot[3]);
IupSetAttribute(plot[3], "DS_COLOR", "100 100 200");
IupSetAttribute(plot[3], "DS_MODE", "BAR");
//PLOT 4 - MakeExamplePlot6
IupSetAttribute(plot[4], "TITLE", "Marks Mode");
IupSetAttribute(plot[4], "TITLEFONTSIZE", "16");
IupSetAttribute(plot[4], "MARGINTOP", "40");
IupSetAttribute(plot[4], "MARGINLEFT", "45");
IupSetAttribute(plot[4], "MARGINBOTTOM", "40");
IupSetAttribute(plot[4], "AXS_XAUTOMIN", "NO");
IupSetAttribute(plot[4], "AXS_XAUTOMAX", "NO");
IupSetAttribute(plot[4], "AXS_YAUTOMIN", "NO");
IupSetAttribute(plot[4], "AXS_YAUTOMAX", "NO");
IupSetAttribute(plot[4], "AXS_XMIN", "0");
IupSetAttribute(plot[4], "AXS_XMAX", "0.011");
IupSetAttribute(plot[4], "AXS_YMIN", "0");
IupSetAttribute(plot[4], "AXS_YMAX", "0.22");
IupSetAttribute(plot[4], "AXS_XCROSSORIGIN", "NO");
IupSetAttribute(plot[4], "AXS_YCROSSORIGIN", "NO");
IupSetAttribute(plot[4], "AXS_XTICKFORMAT", "%1.3f");
IupSetAttribute(plot[4], "LEGENDSHOW", "YES");
IupSetAttribute(plot[4], "LEGENDPOS", "BOTTOMRIGHT");
theFac = (float)100.0/(100*100*100);
IupPlotBegin(plot[4], 0);
for (theI=0; theI<=10; theI++)
{
x = (float)(0.0001+theI*0.001);
y = (float)(0.01+theFac*theI*theI);
IupPlotAdd(plot[4], x, y);
}
IupPlotEnd(plot[4]);
IupSetAttribute(plot[4], "DS_MODE", "MARKLINE");
IupSetAttribute(plot[4], "DS_SHOWVALUES", "YES");
IupPlotBegin(plot[4], 0);
for (theI=0; theI<=10; theI++)
{
x = (float)(0.0001+theI*0.001);
y = (float)(0.2-theFac*theI*theI);
IupPlotAdd(plot[4], x, y);
}
IupPlotEnd(plot[4]);
IupSetAttribute(plot[4], "DS_MODE", "MARK");
IupSetAttribute(plot[4], "DS_MARKSTYLE", "HOLLOW_CIRCLE");
//PLOT 5 - MakeExamplePlot8
IupSetAttribute(plot[5], "TITLE", "Data Selection and Editing");
IupSetAttribute(plot[5], "TITLEFONTSIZE", "16");
IupSetAttribute(plot[5], "MARGINTOP", "40");
theFac = (float)100.0/(100*100*100);
IupPlotBegin(plot[5], 0);
for (theI=-10; theI<=10; theI++)
{
x = (float)(0.001*theI);
y = (float)(0.01+theFac*theI*theI*theI);
IupPlotAdd(plot[5], x, y);
}
IupPlotEnd(plot[5]);
IupSetAttribute(plot[5], "DS_COLOR", "100 100 200");
IupSetAttribute(plot[5], "DS_EDIT", "YES");
IupSetCallback(plot[5], "DELETE_CB", (Icallback)delete_cb);
IupSetCallback(plot[5], "SELECT_CB", (Icallback)select_cb);
IupSetCallback(plot[5], "POSTDRAW_CB", (Icallback)postdraw_cb);
IupSetCallback(plot[5], "PREDRAW_CB", (Icallback)predraw_cb);
IupSetCallback(plot[5], "EDIT_CB", (Icallback)edit_cb);
}
static int PlotAdd(lua_State *L)
{
Ihandle *ih = iuplua_checkihandle(L,1);
IupPlotAdd(ih, luaL_checknumber(L,2), luaL_checknumber(L,3));
return 0;
}
/// <summary>
/// Generates a transfer function file at a given path.
/// If a file with the same path already exists, it'll
/// be replaced.
/// </summary>
/// <returns>Returns true if the transfer function can
/// be generated, false otherwise.</returns>
bool TransferFunction::Generate()
{
if (!m_value || !m_distance || !m_path)
throw std::exception_ptr();
std::ofstream file;
file.open(m_path);
if (!file.is_open())
return false;
file << "linear" << std::endl;
file << "0" << std::endl;
if (m_color_size < 2)
throw std::domain_error("At least two color must be set!");
file << m_color_size << std::endl;
// Assign color to transfer function
for (int i = 0; i < MAX_V; ++i)
{
if (m_has_color[i])
{
float r = m_color[(i * 3)] / 255.0f;
float g = m_color[(i * 3) + 1] / 255.0f;
float b = m_color[(i * 3) + 2] / 255.0f;
file << r << " ";
file << g << " ";
file << b << " ";
file << i << std::endl;
}
}
file << m_values_size << std::endl;
IupSetAttribute(m_tf_plot, "CLEAR", "YES");
IupPlotBegin(m_tf_plot, 0);
IupSetAttribute(m_bx_plot, "CLEAR", "YES");
IupPlotBegin(m_bx_plot, 0);
float amax = 0.4f;
float base = m_thickness;
// Assign opacity to transfer function
int b = 0;
float last_a = 0.0f;
for (int i = 0; i < m_values_size; ++i)
{
unsigned int value = (unsigned int)m_value[i];
float x = m_distance[value];
IupPlotAdd(m_bx_plot, value, fmax(fmin(x, 20), -20));
float a = CenteredTriangleFunction(amax, base, x);
if (a != last_a && last_a == 0.0f)
b++;
last_a = a;
if (m_boundary != 0 && b != m_boundary)
a = 0.0f;
file << a << "\t" << value << std::endl;
IupPlotAdd(m_tf_plot, value, a);
}
IupPlotEnd(m_tf_plot);
IupSetAttribute(m_tf_plot, "DS_NAME", "Transfer Function");
IupSetAttribute(m_tf_plot, "DS_COLOR", "128 128 128");
IupSetAttribute(m_tf_plot, "REDRAW", "YES");
IupPlotEnd(m_bx_plot);
IupSetAttribute(m_bx_plot, "DS_NAME", "p(v)");
IupPlotBegin(m_bx_plot, 0);
IupPlotAdd(m_bx_plot, 0, 0);
IupPlotAdd(m_bx_plot, 255, 0);
IupPlotEnd(m_bx_plot);
IupSetAttribute(m_bx_plot, "DS_NAME", "0");
IupSetAttribute(m_bx_plot, "DS_COLOR", "0 0 0");
//IupPlotBegin(m_bx_plot, 0);
//IupPlotAdd(m_bx_plot, 0, m_thickness);
//IupPlotAdd(m_bx_plot, 255, m_thickness);
//IupPlotEnd(m_bx_plot);
//IupSetAttribute(m_bx_plot, "DS_NAME", "b(x)");
//IupSetAttribute(m_bx_plot, "DS_COLOR", "128 128 0");
//IupPlotBegin(m_bx_plot, 0);
//IupPlotAdd(m_bx_plot, 0, -m_thickness);
//IupPlotAdd(m_bx_plot, 255, -m_thickness);
//IupPlotEnd(m_bx_plot);
//IupSetAttribute(m_bx_plot, "DS_NAME", "b(x)");
//IupSetAttribute(m_bx_plot, "DS_COLOR", "128 128 0");
IupSetAttribute(m_bx_plot, "REDRAW", "YES");
file.close();
return true;
}
