Fix grdview Qt backend behavior with -Qt in 3-D views (#8857)

Esteban82 · web-flow · commit 17610eee5eaf · 2026-01-06T10:51:45.000-03:00
* Allow exception for -Qt
diff --git a/src/grdview.c b/src/grdview.c
@@ -1073,7 +1073,7 @@ EXTERN_MSC int GMT_grdview(void *V_API, int mode, void *args) {
 			Return (API->error);
 		}
 		if (P->is_bw) Ctrl->Q.monochrome = true;
-		if (P->categorical && !(Ctrl->Q.mode == GRDVIEW_MESH || Ctrl->T.active)) {
+		if (P->categorical && !(Ctrl->Q.mode == GRDVIEW_MESH || Ctrl->Q.special || Ctrl->T.active)) {
 			GMT_Report (API, GMT_MSG_ERROR, "Categorical data (as implied by CPT) cannot be interpolated and require -T or just -Qm.\n");
 			Return (GMT_RUNTIME_ERROR);
 		}

Original file line number	Diff line number	Diff line change
`@@ -1073,7 +1073,7 @@ EXTERN_MSC int GMT_grdview(void V_API, int mode, void args) {`
`1073`	`1073`	`Return (API->error);`
`1074`	`1074`	`}`
`1075`	`1075`	`if (P->is_bw) Ctrl->Q.monochrome = true;`
`1076`		`- if (P->categorical && !(Ctrl->Q.mode == GRDVIEW_MESH \|\| Ctrl->T.active)) {`
	`1076`	`+ if (P->categorical && !(Ctrl->Q.mode == GRDVIEW_MESH \|\| Ctrl->Q.special \|\| Ctrl->T.active)) {`
`1077`	`1077`	`GMT_Report (API, GMT_MSG_ERROR, "Categorical data (as implied by CPT) cannot be interpolated and require -T or just -Qm.\n");`
`1078`	`1078`	`Return (GMT_RUNTIME_ERROR);`
`1079`	`1079`	`}`