from __future__ import annotations
"""3D Drillhole Exporter.
This module provides exporters for 3D drillhole data (traces and intervals).
"""
from typing import Any
from qgis.core import (
QgsFeature,
QgsField,
QgsFields,
QgsGeometry,
QgsPoint,
QgsWkbTypes,
)
from qgis.PyQt.QtCore import QMetaType
from sec_interp.core import utils as scu
from sec_interp.logger_config import get_logger
from .base_exporter import BaseExporter
logger = get_logger(__name__)
[docs]
class DrillholeTrace3DExporter(BaseExporter):
"""Exports 3D drillhole traces to a Shapefile."""
[docs]
def get_supported_extensions(self) -> list[str]:
"""Get supported extensions."""
return [".shp"]
[docs]
def export(self, output_path: Any, data: dict[str, Any]) -> bool:
"""Export 3D drillhole traces to a Shapefile.
Args:
output_path: Path to the output Shapefile.
data: Dictionary containing 'drillhole_data' and 'crs'.
Can include 'use_projected' (bool).
Returns:
bool: True if export successful, False otherwise.
"""
drillhole_data = data.get("drillhole_data")
crs = data.get("crs")
use_projected = data.get("use_projected", False)
if not drillhole_data or not crs:
return False
try:
fields = self._prepare_fields()
writer = scu.create_shapefile_writer(
str(output_path), crs, fields, QgsWkbTypes.LineStringZ
)
for hole_id, _, traces_3d, traces_3d_proj, _ in drillhole_data:
points_source = traces_3d_proj if use_projected else traces_3d
if not points_source or len(points_source) < 2:
continue
points = [QgsPoint(x, y, z) for x, y, z in points_source]
geom = QgsGeometry.fromPolyline(points)
if geom and not geom.isNull():
feat = QgsFeature(fields)
feat.setGeometry(geom)
feat.setAttribute("hole_id", str(hole_id))
writer.addFeature(feat)
del writer
except Exception:
logger.exception(f"Failed to export 3D drillhole traces to {output_path}")
return False
else:
return True
def _prepare_fields(self) -> QgsFields:
"""Create standard fields for drillhole trace."""
fields = QgsFields()
fields.append(QgsField("hole_id", QMetaType.Type.QString))
return fields
[docs]
class DrillholeInterval3DExporter(BaseExporter):
"""Exports 3D drillhole intervals to a Shapefile."""
[docs]
def get_supported_extensions(self) -> list[str]:
"""Get supported extensions."""
return [".shp"]
[docs]
def export(self, output_path: Any, data: dict[str, Any]) -> bool:
"""Export 3D drillhole intervals to a Shapefile.
Args:
output_path: Path to the output Shapefile.
data: Dictionary containing 'drillhole_data' and 'crs'.
Can include 'use_projected' (bool).
Returns:
bool: True if export successful, False otherwise.
"""
drillhole_data = data.get("drillhole_data")
crs = data.get("crs")
use_projected = data.get("use_projected", False)
if not drillhole_data or not crs:
return False
try:
fields = self._prepare_fields()
writer = scu.create_shapefile_writer(
str(output_path), crs, fields, QgsWkbTypes.LineStringZ
)
for hole_id, _, _, _, segments in drillhole_data:
if not segments:
continue
for segment in segments:
points_source = (
segment.points_3d_projected if use_projected else segment.points_3d
)
if not points_source or len(points_source) < 2:
continue
points = [QgsPoint(x, y, z) for x, y, z in points_source]
geom = QgsGeometry.fromPolyline(points)
if geom and not geom.isNull():
feat = QgsFeature(fields)
feat.setGeometry(geom)
feat.setAttribute("hole_id", str(hole_id))
attrs = segment.attributes
feat.setAttribute("from_depth", attrs.get("from", 0.0))
feat.setAttribute("to_depth", attrs.get("to", 0.0))
feat.setAttribute("unit", segment.unit_name)
writer.addFeature(feat)
del writer
except Exception:
logger.exception(f"Failed to export 3D drillhole intervals to {output_path}")
return False
else:
return True
def _prepare_fields(self) -> QgsFields:
"""Create fields for drillhole intervals."""
fields = QgsFields()
fields.append(QgsField("hole_id", QMetaType.Type.QString))
fields.append(QgsField("from_depth", QMetaType.Type.Double))
fields.append(QgsField("to_depth", QMetaType.Type.Double))
fields.append(QgsField("unit", QMetaType.Type.QString))
return fields