From a060dcfff790f16dd4a0097e0eca4ff4b7f3d0de Mon Sep 17 00:00:00 2001 From: Ricky Curtice Date: Tue, 18 Feb 2014 23:03:13 -0800 Subject: STORM-1920: Math cleanup from Richard Linden. --- indra/newview/llmanipscale.cpp | 111 +++++++++++++++-------------------------- 1 file changed, 39 insertions(+), 72 deletions(-) (limited to 'indra/newview/llmanipscale.cpp') diff --git a/indra/newview/llmanipscale.cpp b/indra/newview/llmanipscale.cpp index ae0884ac5d..087f617bbb 100755 --- a/indra/newview/llmanipscale.cpp +++ b/indra/newview/llmanipscale.cpp @@ -843,121 +843,85 @@ void LLManipScale::drag( S32 x, S32 y ) // Scale around the void LLManipScale::dragCorner( S32 x, S32 y ) { - LLBBox bbox = LLSelectMgr::getInstance()->getBBoxOfSelection(); - // Suppress scale if mouse hasn't moved. if (x == mLastMouseX && y == mLastMouseY) { - // sendUpdates(TRUE,TRUE,TRUE); return; } - mLastMouseX = x; mLastMouseY = y; - LLVector3d drag_start_point_global = mDragStartPointGlobal; - LLVector3d drag_start_center_global = mDragStartCenterGlobal; - LLVector3 drag_start_point_agent = gAgent.getPosAgentFromGlobal(drag_start_point_global); - LLVector3 drag_start_center_agent = gAgent.getPosAgentFromGlobal(drag_start_center_global); + LLVector3 drag_start_point_agent = gAgent.getPosAgentFromGlobal(mDragStartPointGlobal); + LLVector3 drag_start_center_agent = gAgent.getPosAgentFromGlobal(mDragStartCenterGlobal); LLVector3d drag_start_dir_d; - drag_start_dir_d.setVec(drag_start_point_global - drag_start_center_global); - LLVector3 drag_start_dir_f; - drag_start_dir_f.setVec(drag_start_dir_d); + drag_start_dir_d.setVec(mDragStartPointGlobal - mDragStartCenterGlobal); F32 s = 0; F32 t = 0; - nearestPointOnLineFromMouse(x, y, - drag_start_center_agent, - drag_start_point_agent, - s, t ); - - F32 drag_start_dist = dist_vec(drag_start_point_agent, drag_start_center_agent); + drag_start_center_agent, + drag_start_point_agent, + s, t ); if( s <= 0 ) // we only care about intersections in front of the camera { return; } + mDragPointGlobal = lerp(mDragStartCenterGlobal, mDragStartPointGlobal, t); - LLVector3d drag_point_global = drag_start_center_global + t * drag_start_dir_d; - - F32 scale_factor = t; - - BOOL uniform = LLManipScale::getUniform(); - - if( !uniform ) - { - scale_factor = 0.5f + (scale_factor * 0.5f); - } + LLBBox bbox = LLSelectMgr::getInstance()->getBBoxOfSelection(); + F32 scale_factor = 1.f; + F32 max_scale = partToMaxScale(mManipPart, bbox); + F32 min_scale = partToMinScale(mManipPart, bbox); + BOOL uniform = LLManipScale::getUniform(); // check for snapping - LLVector3 drag_center_agent = gAgent.getPosAgentFromGlobal(drag_point_global); LLVector3 mouse_on_plane1; - getMousePointOnPlaneAgent(mouse_on_plane1, x, y, drag_center_agent, mScalePlaneNormal1); - LLVector3 mouse_on_plane2; - getMousePointOnPlaneAgent(mouse_on_plane2, x, y, drag_center_agent, mScalePlaneNormal2); - LLVector3 mouse_dir_1 = mouse_on_plane1 - mScaleCenter; - LLVector3 mouse_dir_2 = mouse_on_plane2 - mScaleCenter; - LLVector3 mouse_to_scale_line_1 = mouse_dir_1 - projected_vec(mouse_dir_1, mScaleDir); - LLVector3 mouse_to_scale_line_2 = mouse_dir_2 - projected_vec(mouse_dir_2, mScaleDir); - LLVector3 mouse_to_scale_line_dir_1 = mouse_to_scale_line_1; - mouse_to_scale_line_dir_1.normVec(); - if (mouse_to_scale_line_dir_1 * mSnapGuideDir1 < 0.f) - { - // need to keep sign of mouse offset wrt to snap guide direction - mouse_to_scale_line_dir_1 *= -1.f; - } - LLVector3 mouse_to_scale_line_dir_2 = mouse_to_scale_line_2; - mouse_to_scale_line_dir_2.normVec(); - if (mouse_to_scale_line_dir_2 * mSnapGuideDir2 < 0.f) - { - // need to keep sign of mouse offset wrt to snap guide direction - mouse_to_scale_line_dir_2 *= -1.f; - } + getMousePointOnPlaneAgent(mouse_on_plane1, x, y, mScaleCenter, mScalePlaneNormal1); + mouse_on_plane1 -= mScaleCenter; - F32 snap_dir_dot_mouse_offset1 = mSnapGuideDir1 * mouse_to_scale_line_dir_1; - F32 snap_dir_dot_mouse_offset2 = mSnapGuideDir2 * mouse_to_scale_line_dir_2; + LLVector3 mouse_on_plane2; + getMousePointOnPlaneAgent(mouse_on_plane2, x, y, mScaleCenter, mScalePlaneNormal2); + mouse_on_plane2 -= mScaleCenter; - F32 dist_from_scale_line_1 = mouse_to_scale_line_1 * mouse_to_scale_line_dir_1; - F32 dist_from_scale_line_2 = mouse_to_scale_line_2 * mouse_to_scale_line_dir_2; + LLVector3 projected_drag_pos1 = inverse_projected_vec(mScaleDir, orthogonal_component(mouse_on_plane1, mSnapGuideDir1)); + LLVector3 projected_drag_pos2 = inverse_projected_vec(mScaleDir, orthogonal_component(mouse_on_plane2, mSnapGuideDir2)); - F32 max_scale = partToMaxScale(mManipPart, bbox); - F32 min_scale = partToMinScale(mManipPart, bbox); + LLVector3 mouse_offset_from_scale_line_1 = orthogonal_component(mouse_on_plane1, mScaleDir); + LLVector3 mouse_offset_from_scale_line_2 = orthogonal_component(mouse_on_plane2, mScaleDir); BOOL snap_enabled = gSavedSettings.getBOOL("SnapEnabled"); - if (snap_enabled && dist_from_scale_line_1 > mSnapRegimeOffset * snap_dir_dot_mouse_offset1) + if (snap_enabled && (mouse_on_plane1 - projected_drag_pos1) * mSnapGuideDir1 > mSnapRegimeOffset) { - mInSnapRegime = TRUE; - LLVector3 projected_drag_pos = mouse_on_plane1 - (dist_from_scale_line_1 / snap_dir_dot_mouse_offset1) * mSnapGuideDir1; - F32 drag_dist = (projected_drag_pos - mScaleCenter) * mScaleDir; + F32 drag_dist = projected_drag_pos1.length(); - F32 cur_subdivisions = llclamp(getSubdivisionLevel(projected_drag_pos, mScaleDir, mScaleSnapUnit1), sGridMinSubdivisionLevel, sGridMaxSubdivisionLevel); + F32 cur_subdivisions = llclamp(getSubdivisionLevel(projected_drag_pos1, mScaleDir, mScaleSnapUnit1), sGridMinSubdivisionLevel, sGridMaxSubdivisionLevel); F32 snap_dist = mScaleSnapUnit1 / (2.f * cur_subdivisions); F32 relative_snap_dist = fmodf(drag_dist + snap_dist, mScaleSnapUnit1 / cur_subdivisions); mScaleSnapValue = llclamp((drag_dist - (relative_snap_dist - snap_dist)), min_scale, max_scale); - scale_factor = mScaleSnapValue / drag_start_dist; - if( !uniform ) + mInSnapRegime = TRUE; + scale_factor = mScaleSnapValue / dist_vec(drag_start_point_agent, drag_start_center_agent); + if (!uniform) { scale_factor *= 0.5f; } } - else if (snap_enabled && dist_from_scale_line_2 > mSnapRegimeOffset * snap_dir_dot_mouse_offset2) + else if (snap_enabled && (mouse_on_plane2 - projected_drag_pos2) * mSnapGuideDir2 > mSnapRegimeOffset ) { - mInSnapRegime = TRUE; - LLVector3 projected_drag_pos = mouse_on_plane2 - (dist_from_scale_line_2 / snap_dir_dot_mouse_offset2) * mSnapGuideDir2; - F32 drag_dist = (projected_drag_pos - mScaleCenter) * mScaleDir; + F32 drag_dist = projected_drag_pos2.length(); - F32 cur_subdivisions = llclamp(getSubdivisionLevel(projected_drag_pos, mScaleDir, mScaleSnapUnit2), sGridMinSubdivisionLevel, sGridMaxSubdivisionLevel); + F32 cur_subdivisions = llclamp(getSubdivisionLevel(projected_drag_pos2, mScaleDir, mScaleSnapUnit2), sGridMinSubdivisionLevel, sGridMaxSubdivisionLevel); F32 snap_dist = mScaleSnapUnit2 / (2.f * cur_subdivisions); F32 relative_snap_dist = fmodf(drag_dist + snap_dist, mScaleSnapUnit2 / cur_subdivisions); mScaleSnapValue = llclamp((drag_dist - (relative_snap_dist - snap_dist)), min_scale, max_scale); - scale_factor = mScaleSnapValue / drag_start_dist; - if( !uniform ) + mInSnapRegime = TRUE; + scale_factor = mScaleSnapValue / dist_vec(drag_start_point_agent, drag_start_center_agent); + if (!uniform) { scale_factor *= 0.5f; } @@ -965,8 +929,14 @@ void LLManipScale::dragCorner( S32 x, S32 y ) else { mInSnapRegime = FALSE; + scale_factor = t; + if (!uniform) + { + scale_factor = 0.5f + (scale_factor * 0.5f); + } } + F32 max_scale_factor = get_default_max_prim_scale() / MIN_PRIM_SCALE; F32 min_scale_factor = MIN_PRIM_SCALE / get_default_max_prim_scale(); @@ -1069,9 +1039,6 @@ void LLManipScale::dragCorner( S32 x, S32 y ) } } - - - mDragPointGlobal = drag_point_global; } -- cgit v1.2.3