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diff --git a/chart2/source/inc/chartview/ExplicitScaleValues.hxx b/chart2/source/inc/chartview/ExplicitScaleValues.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#pragma once
+
+#include <chartview/chartviewdllapi.hxx>
+#include <com/sun/star/chart/TimeInterval.hpp>
+#include <com/sun/star/chart2/AxisOrientation.hpp>
+#include <com/sun/star/chart2/XScaling.hpp>
+#include <tools/date.hxx>
+#include <vector>
+
+namespace com::sun::star::chart2
+{
+class XScaling;
+}
+
+namespace chart
+{
+/** This structure contains the explicit values for a scale like Minimum and Maximum.
+    See also css::chart2::ScaleData.
+*/
+struct OOO_DLLPUBLIC_CHARTVIEW ExplicitScaleData
+{
+    ExplicitScaleData();
+
+    double Minimum;
+    double Maximum;
+    double Origin;
+
+    css::chart2::AxisOrientation Orientation;
+
+    css::uno::Reference<css::chart2::XScaling> Scaling;
+
+    sal_Int32 AxisType; //see css::chart2::AxisType
+    bool m_bShiftedCategoryPosition;
+    sal_Int32 TimeResolution; //constant of type <type>css::chart::TimeUnit</type>
+    Date NullDate;
+};
+
+struct ExplicitSubIncrement
+{
+    ExplicitSubIncrement();
+
+    /** Numbers of intervals between two superior ticks.  For an axis
+        this usually means, that <code>IntervalCount - 1</code>
+        sub-tick-marks are displayed between two superior ticks.
+
+     */
+    sal_Int32 IntervalCount;
+
+    /** If <TRUE/>, the distance between two sub-tick-marks on the
+        screen is always the same.  If <FALSE/>, the distances may
+        differ depending on the <type>XScaling</type>.
+     */
+    bool PostEquidistant;
+};
+
+/** describes how tickmarks are positioned on the scale of an axis.
+*/
+struct OOO_DLLPUBLIC_CHARTVIEW ExplicitIncrementData
+{
+    ExplicitIncrementData();
+
+    /** the following two members are only for date-time axis
+    */
+    css::chart::TimeInterval MajorTimeInterval;
+    css::chart::TimeInterval MinorTimeInterval;
+
+    /** the other members are for *not* date-time axis
+    */
+
+    /** <member>Distance</member> describes the distance between two
+    neighboring main tickmarks on a <type>Scale</type> of an axis.
+    All neighboring main tickmarks have the same constant distance.
+
+    <p>If the Scale has a <type>XScaling</type> the <member>Distance</member>
+    may be measured in two different ways - that is - before or after the
+    scaling is applied.</p>
+
+    <p>On a logarithmic scale for example the distance between two main
+    tickmarks is typically measured after the scaling is applied:
+    Distance = log(tick2)-log(tick1)
+    ( log(1000)-log(100)==log(100)-log(10)==log(10)-log(1)==1==Distance ).
+    The resulting tickmarks will always look equidistant on the screen.
+    The other possibility is to have a Distance = tick2-tick1 measured constant
+    before a scaling is applied, which may lead to non equidistant tickmarks
+    on the screen.</p>
+
+    <p><member>PostEquidistant</member> rules whether the <member>Distance</member>
+    is meant to be a value before or after scaling.</p>
+    */
+    double Distance;
+
+    /**
+    <member>PostEquidistant</member> rules whether the member <member>Distance</member>
+    describes a distance before or after the scaling is applied.
+
+    <p>If <member>PostEquidistant</member> equals <TRUE/> <member>Distance</member>
+    is given in values after <type>XScaling</type> is applied, thus resulting
+    main tickmarks will always look equidistant on the screen.
+    If <member>PostEquidistant</member> equals <FALSE/> <member>Distance</member>
+    is given in values before <type>XScaling</type> is applied.</p>
+    */
+    bool PostEquidistant;
+
+    /** The <member>BaseValue</member> gives a starting point on the scale
+    to which all further main tickmarks are relatively positioned.
+
+    <p>The <member>BaseValue</member> is always a value on the scale before
+    a possible scaling is applied. If the given value is not valid in the
+    associated scaling the minimum of the scaling is assumed,
+    if there is no minimum any other obvious value will be assumed.</p>
+
+    <p>E.g.: assume a scale from 0 to 6 with identical scaling.
+    Further assume this Increment to have Distance==2 and PostEquidistant==false.
+    Setting BaseValue=0 would lead to main tickmarks 0; 2; 4; 6;
+    Setting BaseValue=1,3 would lead to main tickmarks 1,3; 3,3; 5,3;
+    Setting BaseValue=-0,7 would also lead to main tickmarks 1,3; 3,3; 5,3;
+    And setting BaseValue to 2, -2, 4, -4 etc. in this example
+    leads to the same result as BaseValue=0.</p>
+    */
+    double BaseValue;
+
+    /** <member>SubIncrements</member> describes the positioning of further
+    sub tickmarks on the scale of an axis.
+
+    <p>The first SubIncrement in this sequence determines how the
+    distance between two neighboring main tickmarks is divided for positioning
+    of further sub tickmarks. Every following SubIncrement determines the
+    positions of subsequent tickmarks in relation to their parent tickmarks
+    given by the preceding SubIncrement.</p>
+    */
+    std::vector<ExplicitSubIncrement> SubIncrements;
+};
+
+} //namespace chart
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */