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FIX: check whether -C and -E use different unit in grdtrack #8728

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Merged
merged 4 commits into from
May 16, 2025
Merged

FIX: check whether -C and -E use different unit in grdtrack #8728

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85694aa
FIX: check whether -C and -E use different unit
Dengda98 May 15, 2025
be065cb
DOC: update annotation of checking -C and -E units
Dengda98 May 16, 2025
bacc85c
DOC: update grdtrack.rst about -C and -E units
Dengda98 May 16, 2025
459889c
DOC: update grdtrack.rst, add PR reference
Dengda98 May 16, 2025
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8 changes: 8 additions & 0 deletions src/grdtrack.c
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Original file line number Diff line number Diff line change
Expand Up @@ -816,6 +816,14 @@ EXTERN_MSC int GMT_grdtrack (void *V_API, int mode, void *args) {
if (gmt_init_distaz (GMT, Ctrl->E.unit, Ctrl->E.mode, GMT_MAP_DIST) == GMT_NOT_A_VALID_TYPE) /* Initialize the distance unit and scaling */
Return (GMT_NOT_A_VALID_TYPE);

/* Check whether -C and -E use different unit */
if (Ctrl->C.active && Ctrl->C.unit != Ctrl->E.unit){
GMT_Report (API, GMT_MSG_ERROR,
"Option -C and -E shoule take the same unit, but received %c (-C) and %c (-E). "
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Can you please rephrase this to:
"Sorry but a current limitation obliges that options -C and -E must have the same unit, but received %c (-C) and %c (-E). "
"You must explicitly set the same unit for -C and -E.\n", Ctrl->C.unit, Ctrl->E.unit);

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Sorry for delay response. Maybe you can edit it later ?

"Recommend you explicitly set the same unit for -C and -E.\n", Ctrl->C.unit, Ctrl->E.unit);
Return (GMT_RUNTIME_ERROR);
}

/* Set default spacing to half the min grid spacing: */
Ctrl->E.step = 0.5 * MIN (GC[0].G->header->inc[GMT_X], GC[0].G->header->inc[GMT_Y]);
if (gmt_M_is_geographic (GMT, GMT_IN)) { /* Convert to km if geographic or degrees if arc-units */
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