mirror of
https://github.com/boostorg/geometry.git
synced 2025-05-11 21:44:04 +00:00
Updated x04_wxwidgets_world_mapper
[SVN r60870]
This commit is contained in:
Barend Gehrels
parent
eb461d3d41
commit
01cc3e8a08
@ -7,37 +7,53 @@
|
||||
//
|
||||
// wxWidgets World Mapper example
|
||||
|
||||
|
||||
// #define EXAMPLE_WX_USE_GRAPHICS_CONTEXT 1
|
||||
|
||||
// For Boost/uBLAS:
|
||||
#define _SCL_SECURE_NO_WARNINGS 1
|
||||
|
||||
#include <fstream>
|
||||
#include <sstream>
|
||||
|
||||
#include <boost/foreach.hpp>
|
||||
#include <boost/shared_ptr.hpp>
|
||||
|
||||
#include <boost/geometry/geometry.hpp>
|
||||
#include <boost/geometry/geometries/register/point.hpp>
|
||||
#include <boost/geometry/multi/multi.hpp>
|
||||
#include <boost/geometry/geometries/cartesian2d.hpp>
|
||||
#include <boost/geometry/extensions/algorithms/selected.hpp>
|
||||
#include <boost/geometry/extensions/gis/io/wkt/read_wkt.hpp>
|
||||
#include <boost/geometry/extensions/gis/io/wkt/read_wkt_multi.hpp>
|
||||
|
||||
|
||||
// wxWidgets, if these headers are NOT found, adapt include path (and lib path)
|
||||
|
||||
#include "wx/wx.h"
|
||||
#include "wx/math.h"
|
||||
#include "wx/stockitem.h"
|
||||
|
||||
|
||||
#ifdef EXAMPLE_WX_USE_GRAPHICS_CONTEXT
|
||||
#include "wx/graphics.h"
|
||||
#endif
|
||||
|
||||
|
||||
// Adapt wxWidgets points to Boost.Geometry points such that they can be used
|
||||
// in e.g. transformations (see below)
|
||||
BOOST_GEOMETRY_REGISTER_POINT_2D(wxPoint, int, cs::cartesian, x, y)
|
||||
BOOST_GEOMETRY_REGISTER_POINT_2D(wxRealPoint, double, cs::cartesian, x, y)
|
||||
|
||||
|
||||
typedef boost::geometry::multi_polygon<boost::geometry::polygon_2d> multi_type;
|
||||
typedef boost::geometry::multi_polygon<boost::geometry::polygon_2d> country_type;
|
||||
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
// Read an ASCII file containing WKT's
|
||||
// ----------------------------------------------------------------------------
|
||||
template <typename Geometry, typename Box>
|
||||
void read_wkt(std::string const& filename, std::vector<Geometry>& geometries, Box& box)
|
||||
void read_wkt(std::string const& filename, std::vector<Geometry>& geometries, Box& m_box)
|
||||
{
|
||||
std::ifstream cpp_file(filename.c_str());
|
||||
if (cpp_file.is_open())
|
||||
@ -52,7 +68,7 @@ void read_wkt(std::string const& filename, std::vector<Geometry>& geometries, Bo
|
||||
Geometry geometry;
|
||||
boost::geometry::read_wkt(line, geometry);
|
||||
geometries.push_back(geometry);
|
||||
boost::geometry::combine(box, boost::geometry::make_envelope<Box>(geometry));
|
||||
boost::geometry::combine(m_box, boost::geometry::make_envelope<Box>(geometry));
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -60,12 +76,6 @@ void read_wkt(std::string const& filename, std::vector<Geometry>& geometries, Bo
|
||||
|
||||
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
class HelloWorldApp: public wxApp
|
||||
{
|
||||
public:
|
||||
bool OnInit();
|
||||
};
|
||||
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
@ -86,47 +96,74 @@ class HelloWorldCanvas: public wxWindow
|
||||
{
|
||||
public:
|
||||
HelloWorldCanvas(wxFrame *frame);
|
||||
void DrawCountries(wxDC& dc);
|
||||
|
||||
private:
|
||||
void DrawCountries(wxDC& dc);
|
||||
void DrawCountry(wxDC& dc, country_type const& country);
|
||||
|
||||
void OnPaint(wxPaintEvent& );
|
||||
void OnMouseMove(wxMouseEvent&);
|
||||
|
||||
boost::geometry::box_2d box;
|
||||
std::vector<multi_type> countries;
|
||||
typedef boost::geometry::strategy::transform::map_transformer
|
||||
<
|
||||
boost::geometry::point_2d, wxPoint,
|
||||
true, true
|
||||
> map_transformer_type;
|
||||
|
||||
typedef boost::geometry::strategy::transform::inverse_transformer
|
||||
<
|
||||
wxPoint, boost::geometry::point_2d
|
||||
> inverse_transformer_type;
|
||||
|
||||
boost::shared_ptr<map_transformer_type> m_map_transformer;
|
||||
boost::shared_ptr<inverse_transformer_type> m_inverse_transformer;
|
||||
|
||||
boost::geometry::box_2d m_box;
|
||||
std::vector<country_type> m_countries;
|
||||
int m_focus;
|
||||
|
||||
wxBrush m_orange;
|
||||
wxFrame* m_owner;
|
||||
|
||||
DECLARE_EVENT_TABLE()
|
||||
};
|
||||
|
||||
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
bool HelloWorldApp::OnInit()
|
||||
class HelloWorldApp: public wxApp
|
||||
{
|
||||
// Create the main frame window
|
||||
HelloWorldFrame *frame = new HelloWorldFrame(NULL, _T("Boost.Geometry for wxWidgets - Hello World!"), wxDefaultPosition, wxSize(640, 480));
|
||||
public:
|
||||
bool OnInit()
|
||||
{
|
||||
// Create the main frame window
|
||||
HelloWorldFrame *frame = new HelloWorldFrame(NULL, _T("Boost.Geometry for wxWidgets - Hello World!"), wxDefaultPosition, wxSize(640, 480));
|
||||
|
||||
wxMenu *file_menu = new wxMenu;
|
||||
file_menu->Append(wxID_EXIT, wxGetStockLabel(wxID_EXIT));
|
||||
wxMenuBar* menuBar = new wxMenuBar;
|
||||
menuBar->Append(file_menu, _T("&File"));
|
||||
frame->SetMenuBar(menuBar);
|
||||
wxMenu *file_menu = new wxMenu;
|
||||
file_menu->Append(wxID_EXIT, wxGetStockLabel(wxID_EXIT));
|
||||
wxMenuBar* menuBar = new wxMenuBar;
|
||||
menuBar->Append(file_menu, _T("&File"));
|
||||
frame->SetMenuBar(menuBar);
|
||||
|
||||
int width, height;
|
||||
frame->GetClientSize(&width, &height);
|
||||
int width, height;
|
||||
frame->GetClientSize(&width, &height);
|
||||
|
||||
(void) new HelloWorldCanvas(frame);
|
||||
(void) new HelloWorldCanvas(frame);
|
||||
|
||||
// Show the frame
|
||||
frame->Show(true);
|
||||
// Show the frame
|
||||
frame->Show(true);
|
||||
|
||||
return true;
|
||||
}
|
||||
};
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
HelloWorldFrame::HelloWorldFrame(wxFrame *frame, const wxString& title, const wxPoint& pos, const wxSize& size):
|
||||
wxFrame(frame, wxID_ANY, title, pos, size, wxDEFAULT_FRAME_STYLE | wxFULL_REPAINT_ON_RESIZE )
|
||||
HelloWorldFrame::HelloWorldFrame(wxFrame *frame, const wxString& title, const wxPoint& pos, const wxSize& size)
|
||||
: wxFrame(frame, wxID_ANY, title, pos, size, wxDEFAULT_FRAME_STYLE | wxFULL_REPAINT_ON_RESIZE )
|
||||
{
|
||||
CreateStatusBar(2);
|
||||
}
|
||||
|
||||
|
||||
@ -149,76 +186,155 @@ void HelloWorldFrame::OnCloseWindow(wxCloseEvent& )
|
||||
// ----------------------------------------------------------------------------
|
||||
HelloWorldCanvas::HelloWorldCanvas(wxFrame *frame)
|
||||
: wxWindow(frame, wxID_ANY)
|
||||
, m_owner(frame)
|
||||
, m_focus(-1)
|
||||
{
|
||||
boost::geometry::assign_inverse(box);
|
||||
read_wkt("data/world.wkt", countries, box);
|
||||
boost::geometry::assign_inverse(m_box);
|
||||
read_wkt("data/world.wkt", m_countries, m_box);
|
||||
m_orange = wxBrush(wxColour(255, 128, 0), wxSOLID);
|
||||
}
|
||||
|
||||
|
||||
|
||||
void HelloWorldCanvas::OnMouseMove(wxMouseEvent &event)
|
||||
{
|
||||
namespace bg = boost::geometry;
|
||||
|
||||
if (m_inverse_transformer)
|
||||
{
|
||||
// Boiler-plate wxWidgets code
|
||||
wxClientDC dc(this);
|
||||
PrepareDC(dc);
|
||||
m_owner->PrepareDC(dc);
|
||||
|
||||
// Transform the point to Lon/Lat
|
||||
bg::point_2d point;
|
||||
bg::transform(event.GetPosition(), point, *m_inverse_transformer);
|
||||
|
||||
// Determine selected object
|
||||
int i = 0;
|
||||
int previous_focus = m_focus;
|
||||
m_focus = -1;
|
||||
BOOST_FOREACH(country_type const& country, m_countries)
|
||||
{
|
||||
if (bg::selected(country, point, 0))
|
||||
{
|
||||
m_focus = i;
|
||||
}
|
||||
i++;
|
||||
}
|
||||
|
||||
// On change:
|
||||
if (m_focus != previous_focus)
|
||||
{
|
||||
// Undraw old focus
|
||||
if (previous_focus >= 0)
|
||||
{
|
||||
dc.SetBrush(*wxWHITE_BRUSH);
|
||||
DrawCountry(dc, m_countries[previous_focus]);
|
||||
}
|
||||
// Draw new focus
|
||||
if (m_focus >= 0)
|
||||
{
|
||||
dc.SetBrush(m_orange);
|
||||
DrawCountry(dc, m_countries[m_focus]);
|
||||
}
|
||||
}
|
||||
|
||||
// Create a string and set it in the status text
|
||||
std::ostringstream out;
|
||||
out << "Position: " << point.x() << ", " << point.y() << " " << m_focus << " " << previous_focus;
|
||||
m_owner->SetStatusText(out.str().c_str());
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
void HelloWorldCanvas::OnPaint(wxPaintEvent& )
|
||||
{
|
||||
#if defined(EXAMPLE_WX_USE_GRAPHICS_CONTEXT)
|
||||
wxPaintDC pdc(this);
|
||||
wxGCDC gdc(pdc);
|
||||
wxDC& dc = (wxDC&) gdc;
|
||||
#else
|
||||
wxPaintDC dc(this);
|
||||
#endif
|
||||
|
||||
PrepareDC(dc);
|
||||
|
||||
static bool running = false;
|
||||
if (! running)
|
||||
{
|
||||
running = true;
|
||||
|
||||
// Update the transformers
|
||||
wxSize sz = dc.GetSize();
|
||||
m_map_transformer.reset(new map_transformer_type(m_box, sz.x, sz.y));
|
||||
m_inverse_transformer.reset(new inverse_transformer_type(*m_map_transformer));
|
||||
|
||||
DrawCountries(dc);
|
||||
|
||||
running = false;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void HelloWorldCanvas::DrawCountries(wxDC& dc)
|
||||
{
|
||||
namespace bg = boost::geometry;
|
||||
|
||||
dc.SetBackground(*wxLIGHT_GREY_BRUSH);
|
||||
dc.Clear();
|
||||
|
||||
namespace bg = boost::geometry;
|
||||
|
||||
wxSize sz = GetClientSize();
|
||||
boost::geometry::strategy::transform::map_transformer
|
||||
<
|
||||
bg::point_2d,
|
||||
wxPoint, true, true
|
||||
> matrix(box, sz.x, sz.y);
|
||||
|
||||
BOOST_FOREACH(multi_type const& country, countries)
|
||||
BOOST_FOREACH(country_type const& country, m_countries)
|
||||
{
|
||||
BOOST_FOREACH(bg::polygon_2d const& poly, country)
|
||||
{
|
||||
bg::linear_ring<wxPoint> wx_ring;
|
||||
// Use only outer, holes are (for the moment) ignored
|
||||
bg::transform(poly.outer(), wx_ring, matrix);
|
||||
|
||||
// Todo: avoid converting (use pointer-compatible container)
|
||||
wxPoint* points = new wxPoint[boost::size(wx_ring)];
|
||||
int n = 0;
|
||||
BOOST_FOREACH(wxPoint const& p, wx_ring)
|
||||
{
|
||||
points[n++] = p;
|
||||
}
|
||||
// end todo
|
||||
|
||||
dc.DrawPolygon(n, points);
|
||||
|
||||
delete[] points;
|
||||
}
|
||||
DrawCountry(dc, country);
|
||||
}
|
||||
if (m_focus != -1)
|
||||
{
|
||||
dc.SetBrush(m_orange);
|
||||
DrawCountry(dc, m_countries[-1]);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void HelloWorldCanvas::DrawCountry(wxDC& dc, country_type const& country)
|
||||
{
|
||||
namespace bg = boost::geometry;
|
||||
|
||||
BOOST_FOREACH(bg::polygon_2d const& poly, country)
|
||||
{
|
||||
bg::linear_ring<wxPoint> wx_ring;
|
||||
// Use only outer, holes are (for the moment) ignored
|
||||
bg::transform(poly.outer(), wx_ring, *m_map_transformer);
|
||||
|
||||
// Todo: avoid converting (use pointer-compatible container)
|
||||
wxPoint* points = new wxPoint[boost::size(wx_ring)];
|
||||
int n = 0;
|
||||
BOOST_FOREACH(wxPoint const& p, wx_ring)
|
||||
{
|
||||
points[n++] = p;
|
||||
}
|
||||
// end todo
|
||||
|
||||
dc.DrawPolygon(n, points);
|
||||
|
||||
delete[] points;
|
||||
}
|
||||
}
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
|
||||
|
||||
BEGIN_EVENT_TABLE(HelloWorldFrame, wxFrame)
|
||||
EVT_CLOSE(HelloWorldFrame::OnCloseWindow)
|
||||
EVT_MENU(wxID_EXIT, HelloWorldFrame::OnExit)
|
||||
EVT_CLOSE(HelloWorldFrame::OnCloseWindow)
|
||||
EVT_MENU(wxID_EXIT, HelloWorldFrame::OnExit)
|
||||
END_EVENT_TABLE()
|
||||
|
||||
|
||||
BEGIN_EVENT_TABLE(HelloWorldCanvas, wxWindow)
|
||||
EVT_PAINT(HelloWorldCanvas::OnPaint)
|
||||
EVT_PAINT(HelloWorldCanvas::OnPaint)
|
||||
EVT_MOTION(HelloWorldCanvas::OnMouseMove)
|
||||
END_EVENT_TABLE()
|
||||
|
||||
|
||||
|
||||
@ -45,7 +45,7 @@
|
||||
AdditionalIncludeDirectories=""c:\software\libraries\wxWidgets-2.8.10\lib\vc_lib\mswd";"c:\software\libraries\wxWidgets-2.8.10\include";..\..\.."
|
||||
PreprocessorDefinitions="WIN32;_DEBUG;__WXMSW__;__WXDEBUG__;_WINDOWS;NOPCH"
|
||||
MinimalRebuild="true"
|
||||
RuntimeLibrary="1"
|
||||
RuntimeLibrary="3"
|
||||
RuntimeTypeInfo="true"
|
||||
WarningLevel="3"
|
||||
SuppressStartupBanner="true"
|
||||
@ -69,6 +69,7 @@
|
||||
LinkIncremental="2"
|
||||
SuppressStartupBanner="true"
|
||||
AdditionalLibraryDirectories="c:\software\libraries\wxWidgets-2.8.10\lib\vc_lib"
|
||||
IgnoreDefaultLibraryNames=""
|
||||
GenerateDebugInformation="true"
|
||||
SubSystem="2"
|
||||
RandomizedBaseAddress="1"
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user