Axle sliding

[97-Tim]

The mouse movement is along the XYZ axes. By default, a blue rectangle is displayed. May I ask if this can be hidden?

[97-Tim]

The mouse movement is along the XYZ axes. By default, a blue rectangle is displayed. May I ask if this can be hidden?

I solved this problem through the following code. May I ask if this issue will be fixed in the future?

// implot3d.h
// Flags for ImPlot3D::BeginPlot()
enum ImPlot3DFlags_ {
ImPlot3DFlags_None = 0, // Default
ImPlot3DFlags_NoTitle = 1 << 0, // Hide plot #title
ImPlot3DFlags_NoLegend = 1 << 1, // Hide plot legend
ImPlot3DFlags_NoMouseText = 1 << 2, // Hide mouse position in plot coordinates
ImPlot3DFlags_NoClip = 1 << 3, // Disable 3D box clipping
ImPlot3DFlags_NoMenus = 1 << 4, // The user will not be able to open context menus
ImPlot3DFlags_Equal = 1 << 5, // X, Y, and Z axes will be constrained to have the same units/pixel
ImPlot3DFlags_NoRotate = 1 << 6, // Lock rotation interaction
ImPlot3DFlags_NoPan = 1 << 7, // Lock panning/translation interaction
ImPlot3DFlags_NoZoom = 1 << 8, // Lock zoom interaction
ImPlot3DFlags_NoInputs = 1 << 9, // Disable all user inputs
ImPlot3DFlags_NoAxisPan = 1 << 10, // Disable axis hover regions and axis-constrained pan interactions**
ImPlot3DFlags_CanvasOnly = ImPlot3DFlags_NoTitle | ImPlot3DFlags_NoLegend | ImPlot3DFlags_NoMouseText,
};

// implot3d.cpp
int GetMouseOverAxis(const ImPlot3DPlot& plot, const ImVec2* corners_pix, const int plane_2d, const int axis_corners[3][2], int* edge_out = nullptr) {
ImGuiIO& io = ImGui::GetIO();
ImVec2 mouse_pos = io.MousePos;
if (edge_out)
*edge_out = -1;
if (ImHasFlag(plot.Flags, ImPlot3DFlags_NoAxisPan))
return -1;

// Compute box center in screen space (average of all corners)
ImVec2 box_center(0, 0);
for (int i = 0; i < 8; i++)
    box_center = box_center + corners_pix[i];
box_center = box_center * (1.0f / 8.0f);

// Check each axis for mouse containment in hover rectangle
for (int axis_idx = 0; axis_idx < 3; axis_idx++) {
    // In 2D mode, skip the perpendicular axis
    if (plane_2d != -1 && axis_idx == plane_2d)
        continue;

    int idx0 = axis_corners[axis_idx][0];
    int idx1 = axis_corners[axis_idx][1];

    // Skip if axis corners are not defined
    if (idx0 == -1 || idx1 == -1)
        continue;

    // Find the edge index for these two corners
    int edge = -1;
    for (int e = 0; e < 12; e++) {
        if ((edges[e][0] == idx0 && edges[e][1] == idx1) || (edges[e][0] == idx1 && edges[e][1] == idx0)) {
            edge = e;
            break;
        }
    }

    if (edge == -1)
        continue;

    ImVec2 p0 = corners_pix[idx0];
    ImVec2 p1 = corners_pix[idx1];
    ImVec2 outward_dir = ComputeEdgeOutwardDir(p0, p1, box_center);
    float hover_width = ComputeAxisHoverWidth(plot.Axes[axis_idx]);

    // Check if mouse is within the edge's hover region
    if (IsPointInEdgeHoverRegion(mouse_pos, p0, p1, outward_dir, hover_width)) {
        if (edge_out)
            *edge_out = edge;
        return axis_idx;
    }
}

return -1; // Not over any axis

}