gwm17/implot
1
0
Fork 0
mirror of https://github.com/gwm17/implot.git synced 2024-11-26 20:28:50 -05:00
Code Issues Projects Releases Wiki Activity

Merge pull request #41 from sergeyn/pr_branch

Browse Source 
Fixes issues when using 16-bit indices. Slight performance gains. Refactors how offsetting data works in the implementation. Improves Offset and Stride demo.
This commit is contained in:
Evan Pezent 2020-06-07 13:18:52 -05:00 committed by GitHub
parent 523ae3aef4 09ef003a81
commit c0bea59c58
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 376 additions and 301 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

636
implot.cpp
View File

File diff suppressed because it is too large Load Diff

41
implot_demo.cpp
View File

@ -160,6 +160,12 @@ void ShowDemoWindow(bool* p_open) {
ImGui::Unindent();
ImGui::BulletText("Double right click to open the plot context menu.");
ImGui::BulletText("Click legend label icons to show/hide plot items.");
ImGui::BulletText("IMPORTANT: By default, anti-aliased lines are turned OFF.");
ImGui::Indent();
ImGui::BulletText("Software AA can be enabled per plot with ImPlotFlags_AntiAliased.");
ImGui::BulletText("AA for demo plots can be enabled from the plot's context menu.");
ImGui::BulletText("If allowable, you are better off using hardware AA (e.g. MSAA).");
ImGui::Unindent();
#ifdef IMPLOT_DEMO_USE_DOUBLE
ImGui::BulletText("The demo data precision is: double");
#else
@ -831,18 +837,37 @@ void ShowDemoWindow(bool* p_open) {
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Offset Data")) {
t_float xs[50], ys[50];
for (int i = 0; i < 50; ++i) {
xs[i] = 0.5f + 0.4f * Cos(i/50.f * 6.28f);
ys[i] = 0.5f + 0.4f * Sin(i/50.f * 6.28f);
if (ImGui::CollapsingHeader("Offset and Stride")) {
static const int k_circles = 11;
static const int k_points_per = 50;
static const int k_size = 2 * k_points_per * k_circles;
static t_float interleaved_data[k_size];
for (int p = 0; p < k_points_per; ++p) {
for (int c = 0; c < k_circles; ++c) {
t_float r = (t_float)c / (k_circles - 1) * 0.2f + 0.2f;
interleaved_data[p*2*k_circles + 2*c + 0] = 0.5f + r * Cos((t_float)p/k_points_per * 6.28f);
interleaved_data[p*2*k_circles + 2*c + 1] = 0.5f + r * Sin((t_float)p/k_points_per * 6.28f);
}
}
static int offset = 0;
ImGui::SliderInt("Offset", &offset, -100, 100);
if (ImPlot::BeginPlot("##offset")) {
ImPlot::PlotLine("circle", xs, ys, 50, offset);
ImGui::BulletText("Offsetting is useful for realtime plots (see above) and circular buffers.");
ImGui::BulletText("Striding is useful for interleaved data (e.g. audio) or plotting structs.");
ImGui::BulletText("Here, all circle data is stored in a single interleaved buffer:");
ImGui::BulletText("[c0.x0 c0.y0 ... cn.x0 cn.y0 c0.x1 c0.y1 ... cn.x1 cn.y1 ... cn.xm cn.ym]");
ImGui::BulletText("The offset value indicates which circle point index is considered the first.");
ImGui::BulletText("Offsets can be negative and/or larger than the actual data count.");
ImGui::SliderInt("Offset", &offset, -2*k_points_per, 2*k_points_per);
if (ImPlot::BeginPlot("##strideoffset")) {
ImPlot::SetColormap(ImPlotColormap_Jet);
char buff[16];
for (int c = 0; c < k_circles; ++c) {
sprintf(buff, "Circle %d", c);
ImPlot::PlotLine(buff, &interleaved_data[c*2 + 0], &interleaved_data[c*2 + 1], k_points_per, offset, 2*k_circles*sizeof(t_float));
}
ImPlot::EndPlot();
ImPlot::SetColormap(ImPlotColormap_Default);
}
// offset++; uncomment for animation!
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Custom Ticks")) {