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-rw-r--r--src/projections/merc.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/projections/merc.cpp b/src/projections/merc.cpp
index 3a0ed7b4..7fd3dff9 100644
--- a/src/projections/merc.cpp
+++ b/src/projections/merc.cpp
@@ -53,7 +53,10 @@ PJ *PROJECTION(merc) {
if( (is_phits = pj_param(P->ctx, P->params, "tlat_ts").i) ) {
phits = fabs(pj_param(P->ctx, P->params, "rlat_ts").f);
if (phits >= M_HALFPI)
- return pj_default_destructor(P, PJD_ERR_LAT_TS_LARGER_THAN_90);
+ {
+ proj_log_error(P, _("Invalid value for lat_ts: |lat_ts| should be <= 90°"));
+ return pj_default_destructor(P, PROJ_ERR_INVALID_OP_ILLEGAL_ARG_VALUE);
+ }
}
if (P->es != 0.0) { /* ellipsoid */